Unhandled Exception and Corruption Occurs in Complex Excel Workbooks

Microsoft Excel enables you to create large and complex workbooks, which can store your significant and business-critical data in an organized form. The complex workbooks may not perform as fast as the small workbooks do. They may cause various problems, like application crash, unhandled exceptions, and Excel file corruption. This behavior of Excel workbook may lead to critical problems of data loss and require Excel file repair to be fixed, if you do not have current backup in place.

The complex Excel workbooks, which need heavy recalculation might face a condition that could cause MS Excel to accidentally try to free up an invalid address for array of the doubles being returned as argument to XLL function call. This behavior causes Mso9.dll (Microsoft Excel library) file to crash MS Excel application and generate either of the below errors:

Unhandled exception in Excel.exe: C0000005: Access Violation.
The instruction at "0x308C9EBB" referenced memory at "0xFFFF0000". The memory could not be "read".
The above issue occurs only when the complex Excel workbooks, which heavily use custom XLLs recalculation, and might not crash Microsoft Excel even if it is hit, depending upon the values, which are inside array. It renders all the data inaccessible and you need to find out the cause of this issue and repair Excel File by fixing it.

Grounds of the problem:
When Excel prepares for calling XLL function while recalculating, it calculates all the dependent cells, which are required for producing arguments for passing to XLL function. If any of the dependent cell's value is modified by the outside code, Excel has to postpone XLL call and dependent cells are recalculated. This overall behavior damaged the Excel Workbooks and Microsoft Excel application can not read data from it.

Resolution
You can download and install a hotfix to prevent this problem, being occurred in future. However, if the problem is caused by Excel corruption, you need to restore the damaged Workbook from the most recent backup. In case backup is either not available or updated, you may face critical problems and needs of the Excel repair software arise.

The applications repair Excel file using high-end scanning techniques. They come incorporated with rich and interactive graphical user interface. With read-only and non-destructive conduct, the software are totally safe to use.

How to repair corrupted Excel 2003 file

Microsoft Office provides us a remarkable spreadsheet tool from MS Office product suite which enables user to create,manage, and process data. There are various functions through which user can solve multiple calculations. It features graphic tools such as charts and graphs that makes the sheet more presentable and automate the data using the VBA (Visual Basic for Applications) language. In addition, you can embed an Excel spreadsheet with other MS Office products such as Word and PowerPoint. What if, the excel file gets corrupted due to various reasons such as power surges, human errors, virus infections, abrupt system shutdown, file becoming too large, etc. In such cases, you should take appropriate corrective measures to repair Excel file. However, if you are unable to perform Excel repair then you should use a third-party Excel file repair software to do the needful.

Consider a scenario wherein you have created an Excel spreadsheet in Excel 2002. However, when you open the file in Excel 2003 the following error message is displayed:

Errors were detected in 'filename.xls,' but Microsoft Excel was able to open the file by making the repairs listed below. Save the file to make these repairs permanent.
Damage to the file was so extensive that repairs were not possible. Excel attempted to recover your formulas and values, but some data may have been lost or corrupted.

Please note that the file may still open perfectly in Excel 2002 but it would display the aforementioned error message when opened in Excel 2003.

Cause:
The cause of this error message is that the Excel file is corrupt.

Resolution:
To resolve this error, you should perform the following steps:
1.Open the file in Excel 2002.
2.Copy the content of the file in the clipboard.
3.Open a new file in Excel 2003 and paste the copied content in the new file.
4.Save the Excel file.

For this, you should ensure that you have both Excel 2002 and Excel 2003 installed on your system. However, if you still are not able to address the issue then you should use a third-party Excel repair tool to repair Excel file. Such read-only tools are non-destructive and do not overwrite the original data while scanning the corrupted file.

Fixing “File Error: Data...” Error Message

Microsoft Excel spreadsheets can get corrupted due to various reasons like incompatible upgradation, application malfunction, network issues, and improper coding. In most situations of XLS or XLSX file damage, the user encounters an error message while trying to open the spreadsheet. To repair a corrupted spreadsheet, MS Excel performs automatic recovery and tries to repair the file. However, if MS Excel does not enter recovery mode, and the file remains corrupt, then you will need to repair manually by using 'Open and Repair' utility. But, if manually repair also fails to repair the spreadsheet, then you will need to restore the spreadsheet from an updated backup. However, in the absence of, or in case of deficient, or corrupted backup, you are not left with any other option, but to use a commercial Excel File Repair application to repair the spreadsheet.

To thoroughly elaborate the above situation, consider a realistic situation wherein you encounter the below error message while trying to open MS Excel 2000 spreadsheet:

"File Error: Data May Have Been Lost"

The above error message does not allow the spreadsheet to open and makes all its saved records inaccessible. The same error message pops up every time you try to open your spreadsheet.

Cause:
The above error message appears when your Excel spreadsheet is logically corrupted.

Resolution:
To get past the above Excel spreadsheet corruption error message, repair the file using the below mentioned steps:

1.Click 'Open' under the 'File' menu.
2.Choose the corrupt Excel file and click 'Open' button.
3.Lastly, click on 'Open and Repair' option to repair the spreadsheet.

In case the spreadsheet remains corrupted even after following the above steps, and you have not maintained any backup, then you will need to repair the spreadsheet using an effective third-party Excel Repair application.

Such MS Excel File Repair tools incorporate repairing mechanisms that are competent enough to repair any logically damaged Excel file. The repair tool is easily understandable and is absolutely non-destructive. It allows the user to save the repaired file at user-specified location.

Unable to Open Corrupted MS Excel Spreadsheets

An Excel spreadsheet corruption can be a result of various factors, like bad sectors, lost clusters, operating system crash, cross linked files, virus infection, and anti virus malfunction. Corruption mainly results in damage of .xls file structure, rendering to inaccessibility of data saved in the spreadsheet. In most of these cases, when a user attempts to open an Excel spreadsheet, s/he encounters an error message. To surmount such error messages, the user needs to restore the file from an updated backup or run Open and Repair utility. However, if both the measures fail to resolve the error message, then the user needs to opt for a commercial third-party Excel File Repair application.

The above problem can be elaborated using the below error message, which pops up when you try to open an Excel spreadsheet:

“Cannot find the file path (or one of its components). Make sure the path and file name are correct and that all required libraries are available. ”

After the above error message pops up, MS Excel starts but is unable to open the workbook that you double-clicked. The data saved in the Workbook becomes inaccessible after the above error message appears.

Cause:
The above error message appears when spreadsheet is corrupted.

Resolution:
In case the spreadsheet opens blank after the above error message, then you need to:

• Use 'Revert to Saved Document' option to recover the original spreadsheet.
• Store the corrupted spreadsheet in SYLK format.
• Store the damaged spreadsheet in HTML (Hyper Text Markup Language) format.

However, if the spreadsheet can not be opened in MS Excel, then you will need to:

• Try to open the spreadsheet in MS Word, MS Excel Viewer or Word Pad.
• Use macros to extract data from a spreadsheet.
• Link the corrupted Excel spreadsheet using external references.

However, if all the above resolutions fail to resolve your issue, then you will need to opt for an effective Excel File Repair application. An Excel Repair tool uses effective repair techniques to repair all logically corrupted spreadsheets.

Recovering Excel from the “Cannot copy .xls.” error message

MS Excel is extensively used world over by the computer users to process business-centered statistics. You can use Excel for creating charts, tables, graphs etc. However, due to inappropriate handling of the system such as improper shutdown while Excel is open, system issues, or due to external factors the Excel files become inaccessible to the user. In such cases, you must replace the corrupted file with its most recent updated version. However, if the updated copy of the file is unavailable then you must take the help of Excel repair utility.

Consider a scenario in which you are working on an Excel spreadsheet that you urgently want to complete. You need to take its copy to your home so that you can complete it. You copy the file in a USB flash drive and remove the flash drive by just pulling it out. Now, when you try to open the file at your home, the file does not open. Instead, the following error message is displayed:

“Cannot copy .xls. The file or directory is corrupted and unreadable.”

Here, “xls” refers to the extension of the Excel file.

Cause:
This problem may have occurred because of various reasons, such as the file may not have been copied properly to the flash drive, the flash drive is either corrupted or virus infected. Because of these reasons, the Excel file may not open.

Resolution:
You should try to open the file in a different system or you can use a different application to open the file. Or you may also try to use an updated backup of the file. If all these mentioned ways are unable to recover your file, then you will surely have to use an Excel File Repair tool. This easy-to-use tool repair and recover the Excel files using effective and robust scanning algorithms.

Repairing Excel File Corrupted due to Round-Tripping

Round-tripping is termed as the process of converting a document, such as Microsoft Excel spreadsheet, from its original format to another format, such as HTML or XML, and then back again to the original format. For a Microsoft Excel file, this can become the reason of file corruption if performed frequently. Doing repeated round-tripping gradually increases the chances of Excel file corruption. Thus, it is recommended to always retain a copy of your Excel data before performing such operations. However, for an already corrupted file, you need to Repair Excel File using suitable methods.

Microsoft Excel uses .xls or .xlsx file format to store data. Round-tripping spreadsheet data manipulates the way in which the data has been stored, which can ultimately cause corruption.

Consider a realistic problem related to Excel file round-tripping. Suppose you create an important spreadsheet with MS Excel and for some reason, you convert it to HTML format, then in PDF format, and then again in Excel native format- XLS or XLSX. After this, when you try to open the file, it fails to open and shows file corruption errors. Consequently, the critical information of the file becomes inaccessible.

Cause:
Microsoft Excel spreadsheet becomes corrupted due to continuous round-tripping between various file formats.

Solution:
To extract the data, you should try following measures:

If you can open the file, try copying its data (or only the uncorrupted data) to a new Excel spreadsheet
You can also try opening the file in Microsoft Excel Viewer
If there is chart that is linked to the corrupted Excel file, you can use a macro to retrieve all possible data.

In case the above methods fail to work, you should delete the corrupted file provided a good backup is available. In other cases, the only solution is to use a third-party utility to Repair Excel spreadsheet.

Microsoft Excel File Size Increases Rapidly

Microsoft Excel, the spreadsheet program by Microsoft, is used by different category of users to create and store important data. Corruption to the file can anyways be annoying, especially when recollecting and recreating all the data in not feasible by normal means. To avoid such issues, it is thus recommended to keep a copy of your relevant workbooks, or otherwise, it may create unavoidable situations of using an Excel File Repair utility.

A corrupted Excel workbook shows different symptoms, depending on the extent of damage. To illustrate the same, consider the following problem and then the associated solutions. Suppose you have an Excel workbook that stores your important accounting data. You suddenly realize that the size of file has grown to a much larger value than exactly what it should be. As a result, the file crashes often with no apparent reason.

Explanation of this behavior:
The above behavior can be the result of following issues:

• If your Excel workbook size has grown unexpectedly, you should check for the empty rows and columns under the used region and delete them immediately, if any.
• This can also occur if the 'last used cell' has been placed quite far away. Hence, you need to open the offending workbook and press Control and End keys to know the exact location of your 'last used cell' and place it at the correct location.
• If this is a shared workbook, users might not be correctly disconnected. Thus, you require to disconnect all the users who are not currently accessing this workbook, re-save the file, and close it again.
• In case, none of the above measures helps, your Excel workbook might be corrupted. If you can open the file, you can create a new workbook and copy all the contents from the affected workbook to this new workbook. However, if the file is inaccessible, you can restore it from backup or use Excel 'Open and Repair' feature or run a third-party utility to Repair Excel File. Excel File Repair software can help you recovering lost Excel file data by repairing it using risk-free algorithms.

Excel 2007 Spreadsheet Corrupted Post Unexpected Power Outage

Unexpected power outage is the most common reason for corruption of Microsoft Excel spreadsheets. When this application is writing some data to a file, the process should not be interrupted or else the file may become inaccessible. The Excel spreadsheet may fail to open. In such circumstances, you have to restore corrupted Excel file from a backup. But if no suitable backup is available, apply some Excel File Repair method.

Consider, you are working with Excel 2007 spreadsheet and suddenly the computer crashes. After this, when you reboot your computer and try to open the file and access its content, the file doesn't behave as expected. Instead of displaying the data it stores, an error message that reads as below:

“Unable to Load Workbook

The workbook that you selected cannot be opened.
The workbook may be in an unsupported file format, or it may be corrupt.
Would you like to try and open this file in Excel?”

As a result of the above error, Excel spreadsheet data cannot be accessed.

The Excel file that got corrupted might contain useful information related to accounting, finance, or some other important records. Thus losing such important information can be troublesome for the user.

Methods to recover:
Some general solutions to resolve such corruption issues with an Excel 2007 spreadsheet are:

• Try to open the file in different application, like MS Word
• Use Microsoft Excel Viewer to open the corrupted file
• In case the corrupted Excel file contains a linked chart, apply a macro to recover the data from the sheet
• Some corruption problems are resolved, if you save the file in HTML format
• If none of the methods works, restoring from backup is the best bet
• But when no backup is present, you need to use XLS File Repair utility. Built to run advanced algorithms, these software are perfect Excel Repair tools for fixing corruption of Excel files.

Resolving 'Cannot access read-only document file_name.xls'

The two most common reasons that a Microsoft Excel file may fail to open are its read-only attribute and corruption of file. Read-only nature of a file implies that it is not allowed to access or modify a file. However, if the file is corrupt, you should first try to use the Excel repair utility to fix the corruption. This proves useful if the file has some minor corruptions. But if this fails, you should apply other powerful solutions to repair excel file.

For better understanding of the concept, consider, that a Microsoft Excel user creates a workbook with valuable data stored in it. He accesses the file many times with no trouble. But one day, when he tries to open the same file, it gives an error:

“Cannot access read-only document file_name.xls.”
The user receives another error message:
“cannot access file_name.xls.”

Even when trying to open the file as read-only, only the former error message is encountered.
Cause:
The Excel file cannot be opened due to following possible reasons:

• File is read-only and user is not allowed to access it.
• File is corrupted. This can occur due to several reasons, ranging from unexpected power outage, large file size, network errors, and the like.

Solution:

• In order to solve the depicted issue and to re-access data, you should:
• Locate the file and right-click it. Click 'Properties' and make sure that the read-only option is unchecked.

Try to open the file. If the problem persists, the file is corrupted. To repair the file, you can:

1. Open the file with Excel 'Open and Repair' feature
2. Try to open the file in applications like, MS Word
3. Try to open the file in safe mode
4. Use a third-party utility to repair excel

Third-party repair tools can repair excel file using effective, yet safe, scanning algorithms. These easy to use products are developed with powerful technology to scrutinize the corrupted Excel files and restore the original data in a few simple steps.

Resolving Excel Chart Corruption Issues

Microsoft Excel provides you with a 'Chart Wizard' feature that allows you to represent your information through graphical representations. These charts provide you with a clear and easy understanding of whole information. But, sometimes when you open your Excel spreadsheet, you may find that your Excel chart is either missing or displaying some invalid characters. This happens when the Excel chart is corrupted or damaged.. Few main reasons for chart corruption are unexpected system shutdown, software malfunction, system crash, etc. As a result of chart corruption, the information stored in chart becomes unreadable or inaccessible. In such situations, an updated backup file comes in handy to restore your inaccessible charts. However, if the backup is not available or corrupted, then you will need to use a high-quality excel repair software to repair excel related applications.

Number of MS Excel users insert charts in the spreadsheet to get their point across. But, what if one day you open your spreadsheet and find your chart missing. This would be a real shock as you might be requiring the chart present in the spreadsheet for an important presentation or meeting. But, now when you have lost it, there is nothing much you can do about it. But, you can surely depict when an Excel chart has gone corrupt. Consider the below two circumstances where the charts have been corrupted:

• First, when you are trying to open an Excel spreadsheet containing charts, it does not open.
• Second, when the spreadsheet opens, but displays invalid or wrong results.

Resolution:
To resolve the above issue, you will need to repair the damaged chart using an efficient repair excel file software. These applications incorporate advanced scanning mechanisms to scan and repair corrupted Excel charts quickly and completely. What makes these applications unique is their ability to restore the data without making any changes in the original content and format of the file, including color, font, font size, style, etc. Also, these XLS Repair utilities are built with interactive graphical user interface that makes them easy to use and understand. Hence, you need not be technical savvy to use these repair tools.

How to Repair Corrupted Excel Worksheet in ELN?

Electronic Lab Notebook (or ELN) is a software program that is generally used by technicians and scientists to replace their paper lab notebooks. ELN users use this application to document data resulted from different procedures, research, and experiments. Electronic Lab Notebooks also have several benefits for organizations. ELN users often use Microsoft Office applications, such as Microsoft Excel for specific data collection and analysis and thus simplify their task. Similar to all other Excel files, Excel worksheets used through ELN can also get corrupt. In worst conditions, these may become completely inaccessibile to the users. These are some situations when a reliable backup can work to restore all the data that the user lost. But in case backup fails or behaves differently from expectations, one can use Excel Repair solutions.

Lets' elaborate such problems using a related example. Consider a user using ELN version 9. He creates a complex Excel workbook and use it through ELN 9. Later, he finds that the size of worksheet automatically grows to an unexpected value. The user observes that each time when it opens or closes the workbook, it is observed with grown size.

Cause:
The specific problem discussed is a known issue in ELN 9. This occurs due to corruption in cells of Excel file, which exponentially contributes to increase the size of Excel worksheet on opening and closing the file. Such corruption particularly occurs with Excel worksheets that are used as templates and contain a peculiar kind of formatting.

Solution:
The following measures can help you recover data in such problems:You can create a new workbook and copy the data from the corrupted workbook.

• You can use Microsoft Excel 'Open and Repair' feature to solve this corruption problem.
• If a valid backup of Excel workbook is available, you can delete the corrupted Excel file and restore from backup.
• In case no suitable backup is present, a third-party XLS Repair tool can be used. An Excel Repair utility can scan a corrupted Microsoft Excel workbook and repair excel using powerful, yet safe, algorithms.

Resolving 'The document is corrupt and cannot be opened' Error a Excel Startup

Microsoft Excel includes a feature of startup folder, called XLStart folder, that can be used to load the files at startup and as a reference for templates. This folder can contain files, like, templates, add-ins, and workbooks (*.xls). The workbook you place in this folder appears in hidden state at the time of startup. But if this startup workbook gets corrupted, you experience issues in starting the application and need Excel Repair solutions.

Let's take an example to illustrate such an event. A Microsoft Excel user creates a workbook and stores large amount of important data in the file. It then moves the file to XLStart folder. After using it for a considerable time, the user one day observes that he cannot open the workbook. When he tries to open Microsoft Excel, the application fails to start with the below error:

“The document is corrupt and cannot be opened. To try and repair it, use the Open and Repair command in the Open dialog (File menu) and select Extract Data when prompted.”

As a result of this error, Excel user cannot access the data further.

Cause:
The most probable cause for the above error to occur is corruption in Excel workbook. Microsoft Excel cannot start because the file has been placed in XLStart folder.

Solution:
To troubleshoot the given problem, you need to find out and repair the problem file using the following steps:Locate your XLStart folder. In Windows XP, the default path is C:\Documents and Settings\Username\Application Data\Microsoft\Excel\XLSTART or C:\Program Files\Microsoft Office\Office10\Xlstart

• Move all the file it contains to a different folder
• Try to open these files, one at a time to find the corrupt file
• Move other files back to XLStart
• Open the corrupt Excel file using Excel 'Open and Repair' function to repair it

In case Excel built-in file repair function doesn't work, you need to use a third-party XLS Repair utility. Designed to run advanced file scanning algorithms, these excel file repair software are simple to install and use.

“The document 'Filename' caused ..” Error while opening an Excel Worksheet

Most of the MS Excel users might encounter an error message while opening an Excel worksheet. One error message occurs when MS Office adds the worksheet into the list of disabled or damaged files. As a result of this error message, the worksheet does not open. To resolve the problem, you need to remove the worksheet from the disabled files list. However, if after removing the file from the disabled list, you still encounter an error, then it is probably due to worksheet corruption. As a result, you may not be access the contents of the worksheet anymore. In such situations, you can use a backup file to restore the data. But, in case the backup file is unavailable or it fails to help, then you can opt for an effective excel file repair software.

Consider a situation – Suppose, you try to open an Excel worksheet, which was not accessible previously. However, when you attempt to again open the sheet, you receive the below error message:

“The document 'Filename' caused a serious error the last time it was opened. Would you like to continue opening it?”
Filename is the name of the file that is corrupt
This error message occurs at every attempt of opening the worksheet and the worksheet does not open, no matter how many attempts are made to open it.
Cause:
This error message pops up if the worksheet is included on the disabled files list for MS Office program. Further, the program includes a file into the disabled list, if the file causes the program to close abruptly in two or more attempts to open it.
Resolution:
This problem can be resolved after removing the worksheet from the list of disabled files. To do so, click 'Disabled Items' from the 'Help' menu in 'About Microsoft Program' of Excel.
You can also re-enable one of the listed items, by selecting the item and then clicking 'Enable'.

However, if you still observe any corruption issues with the worksheet then you need to repair the worksheet using a powerful excel repair software. These applications are specially designed to resolve all corruption issues related to Excel files. These are highly interactive tools that Repair XLS file via most influential scanning algorithms. What makes these tools unique is their ability to restore the repaired Excel file without any alterations or changes in the original contents of the file.

Workbook corrupt! What to do?

Like any other computer file, an Excel workbook is also prone to corruption. A few reasons for its corruption could be virus infection, sudden system shutdown, application malfunction, power failure, etc. Damage to workbook may prove disastrous as you may not be able to access the data saved in the workbook, anymore. It is therefore recommended to maintain a backup file to use it at the time of data loss. But, if unfortunately, you do not have any backup for the workbook data, then you need a high-quality Excel File Repair software to retrieve your data.

For instance – You created a workbook in which you have stored your valuable official information. On trying to open the workbook, you receive the following error message:

Cannot find the file or one of its components. Make sure the path and filenames are correct and that all required libraries are available.

After this error message, the workbook file may not open or may display some invalid or strange characters. Consequently, the data stored in the workbook becomes inaccessible.

Cause:
This error message may occur if the workbook file is corrupted or damaged.

Resolution:
Data retrieval from workbook becomes important as it contains your valuable information. Following measures can be used to recover the contents of the spreadsheet.

• Use Microsoft Office Application Recovery tool to recover the data from workbook.
• Use 'Open and Repair' tool.
• Try to save the file in HTML format.
• Try to save the file in XML spreadsheet format.
• Use a macro to extract the data from the chart in a workbook.

In most cases, you would be able to solve the issue using these measures.

However, if the problem still persists and you badly require the workbook, then you need to use an Repair Excel software to retrieve your data from the corrupted Excel file. You must ensure that the repair software is a reliable application that scans and Repairs Excel File by employing high-end scanning mechanisms. The repair tools must restore the data from the Excel file without any modifications or alterations in the original contents of the file. Also, the utility should offer interactive graphical user interface that makes repair procedure user-friendly, self-explanatory and does not require any prior technical skills.

Tips to Solve Error 'Cannot copy Filename.xls'

Microsoft Excel is a spreadsheet application, packed with various features that simplify a lot of work, like pivot tables, macros, calculation, graphing tools, and many more. For this reason, Excel is a widespread application and is generally used to create and manage business critical information. But sometimes due to ad-hoc usage, external factors or system issues, the Excel files can get corrupt and become partially or completely inaccessible to the user. These are the situations when a user needs to recover from the last available backup. But if backup is unavailable or invalid, and it is not possible to restore, it is recommended to use an XLS Repair utility.

Microsoft Excel files (.xls and .xlsx) are stored many times on an external storage media, such as a USB or CD, to move data between different locations. If the file has not been moved properly, or the media is infected by a virus or the media itself is corrupted, odds develop that the Excel file may become corrupt. In such situations, you may fail to perform some file operations.

To comprehend such problems in more detail, consider you move an Excel file on a USB. When you attach this USB to a Windows computer and try to view and access this file, it fails to open. Additionally, when you attempt to copy the file, it results in an error message as below:

“Cannot copy Try to open the file on a different computer.xls. The file or directory is corrupted and unreadable.”

where, Filename refers to the name of file and .xls is the file extension used by Microsoft Excel in Excel 2003 and earlier versions. As the result of this error, the file cannot be copied. Such situations generally indicate Excel file corruption.

Solution:
To solve the above stated problem, you should:

• Use a different application to open the file
• Restore from a backup
• Use a third-party tool to Repair Excel file

An excel file repair tool can scan and fix corrupted Excel files using powerful, yet safe, scanning algorithms. Most of the companies provides their demo version on their official websites for download. These applications are easy to install and use.

Workbook corruption due to “Unexpected Error (35012)”

A workbook is a MS Excel file , which can hold many worksheets altogether. It is a spreadsheet application in which you can enter, store and manipulate data. It is used to perform tedious calculations, analyze information and manage huge lists in spreadsheet. At times, however, you fail to open the workbook to access your vital data. This generally happens due to the presence of Visual Basic modules in the workbook which may cause Excel file corruption. To access the contents of the workbook, you can use a valid data backup file, if available. In case of unavailability of the backup, you need to excel file repair to retrieve your inaccessible data.

Consider a practical situations – Sometimes, when you attempt to open a workbook( that has macros) , which contains Visual Basic for Applications modules, the following error message may appear on the system screen:

“Unexpected Error (35012)”

After this error message, a Disable Macros dialog box may appear, but the problem remains intact even after disabling the macros. Further, when you click OK in the error message, the workbook closes but Excel remains opened.

Cause:

You come across the above error message when the workbook is corrupted or damaged, regardless of the macro code being present in the file. Corruption in the workbook file may occur due to virus infected macros , improper system shutdown, application malfunction, etc.

Resolution:

Consider the measures given below to resolve the issues:

Try to re-open the file in Excel and set the calculation option to Manual.
Try opening the Excel file in MS Word. However, even if the file opens, you may not be able to recover macros sheets, charts, cell formulas, embedded charts, and more. In such a situation, it is recommended to use a third-party application to repair excel file. An effective excel repair software will enable you to retrieve and restore the data from the corrupted workbook file. These are advanced applications that employ high-end scanning mechanisms to quickly scan and repair the Excel file. Embedded with rich graphical user interface, these tools are easy to use and understand without any prior technical skills.

Dealing with “File error: data may have been lost” Excel Error Message

Microsoft Excel is a popular spreadsheet application that is used to enter, store and manipulate data in tables, rows and columns. The application allows you to perform calculations, statistical analysis,etc. But, at times, some error messages are often encountered by Excel users while opening an Excel file. These error messages occur after the corruption of Excel file. This causes inaccessibility of the data stored in the Excel file, which may further result in severe loss of data in your work area. But, your data can still be recovered in the availability of a healthy data backup file. However, if the backup is not present, or the backup also gets corrupted, then you can use excel repair solutions to repair your corrupt Excel files.

For instance – Sometimes, when you try to open a MS Excel
file, you may encounter an error message similar to the following:

“File error: data may have been lost”

This error message generates the possibility of data loss.

Cause:

Possible causes for the above mentioned error message are:

The error message generally appears if the file is created in the older version of Excel, while you are opening it in a newer version.
Another reason could be corruption or damage of Excel file.

Resolution:

Consider the measures given below to resolve the problem:

Try to open the file in the same version in which you have created the file. But, if the file does not open, then it might be corrupt. Perform a manual workaround to resolve the problem by following any of the measures given below:

1.Try to repair and open the file using Open and Repair feature.
2.Convert the file in XML or HTML format and then convert it back to normal file format.
3.In case, the file is using a chart linked to the affected file, then you can use a macro to extract the data.

However, if the problem still persists, then you are required to use a powerful excel file repair software to repair the corrupted Excel file. These excel recovery applications completely repair the Excel file by employing highly sophisticated scanning algorithms. With their interactive graphical user interface, these are easy-to-use tools that do not require any prior technical understanding or skills.

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