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How to Recover an Excel Spreadsheet Corrupted by a Network Interruption
Question details
The user needs to recover an Excel workbook that became damaged or unavailable due to a network interruption during an online data source refresh.
- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- A network interruption occurred while refreshing an online data source or syncing, causing the Excel file to corrupt.
- Observed behavior
- The Excel workbook is damaged, fails to open normally, or appears unavailable to the user.
Always make a copy of the corrupted local workbook before attempting any recovery steps, and perform all repairs on the copied file to prevent permanent data loss.
Use Excel's Built-in Open and Repair Feature
The quickest way to fix file corruption is by using the Open and Repair tool built directly into Microsoft Excel.
This built-in diagnostic tool attempts to rebuild the internal structure of the corrupted workbook. It offers two modes: a standard repair to save formatting and data, and a raw data extraction mode if the file structure is too severely damaged.
Launch Microsoft Excel, select 'File' from the top ribbon, click on 'Open', and then select 'Browse' to open the file explorer.
Navigate to the folder where your corrupted workbook is saved and click on the file once to highlight it. Do not double-click to open it.
Click the small dropdown arrow next to the 'Open' button at the bottom right of the dialog box, and select 'Open and Repair' from the menu.
Click 'Repair' first to try recovering as much of your work as possible. If Excel fails to repair the file, repeat these steps and choose 'Extract Data' to salvage your raw values and formulas.
Restore a Previous Version from OneDrive
If your file is stored in OneDrive or SharePoint, you can revert to an auto-saved version from before the network interruption.
Recover Using AutoRecover or Temporary Files
Excel automatically saves temporary copies of your work in the background, which can be retrieved if the main file is permanently damaged.
Prevent Future File Corruption with WPS Office
Tired of dealing with corrupted files and network interruptions? WPS Office offers a stable, lightweight, and completely free alternative to Microsoft Office. It provides robust auto-backup features, reliable cloud synchronization, and seamless compatibility with all Microsoft Excel formats.
- 1. Download and Install: Download WPS Office for free from the official website and follow the quick installation prompts.
- 2. Launch WPS Spreadsheet: Open WPS Spreadsheet, which offers a familiar user interface that requires zero learning curve.
- 3. Open Your Excel Files: Seamlessly open, edit, and save your existing .xlsx workbooks with perfect formatting retention.
Frequently Asked Questions
Why did a network interruption corrupt my Excel file?
When Excel is actively refreshing an online data source or saving data to a cloud location, a sudden network drop interrupts the real-time data transfer. This can leave the underlying XML code of the file incomplete or damaged, resulting in file corruption.
What is the difference between Repair and Extract Data in Excel?
The 'Repair' option attempts to fix the workbook's internal structure so you can recover your formatting, formulas, charts, and data together. If the file is too damaged for a structural repair, 'Extract Data' strips away all formatting and macros to forcefully retrieve just your raw values and formulas.
Can I find my corrupted OneDrive files using the general search bar?
Most standard files will appear in the general OneDrive search. However, if your Excel file was stored in the Personal Vault, it is protected by identity verification. You must specifically unlock and open the Personal Vault folder to view or search for those files.
