Excel File Is Corrupted and Cannot Be Opened

Recovery Methods for Corrupted Excel Files

Method 1: Open and Repair (Excel Built-In)

1. In Excel: File → Open → Browse
2. Locate your file but do not double-click
3. Click the dropdown arrow next to Open
4. Select "Open and Repair"
5. Choose Repair first; if unsuccessful, choose Extract Data

"Extract Data" recovers values and formulas but loses formatting — better than losing everything.

Method 2: Change Calculation to Manual Before Opening

Sometimes Excel corrupts during formula recalculation on open:

1. Open a blank Excel workbook
2. File → Options → Formulas → Calculation Options → Manual
3. Try opening the corrupted file again
4. If it opens, immediately save as a new file
5. Reset calculation to Automatic afterward

Method 3: Open in LibreOffice Calc

LibreOffice Calc handles more edge cases than Excel:

1. Install LibreOffice (free at libreoffice.org)
2. Open the XLSX in LibreOffice Calc
3. If it opens, export as a new XLSX

Method 4: Extract Data Manually (ZIP Method)

XLSX files are ZIP archives containing XML:

1. Copy the file and rename to .zip
2. Extract the ZIP
3. Open xl/worksheets/sheet1.xml in a text editor
4. Cell values appear in <v> tags — text content is recoverable this way

Method 5: Version History

"We Found a Problem With Some Content" Error

When Excel shows this warning:

1. Click Yes to let Excel attempt repair
2. Excel will open the file in a repaired state and show a repair log
3. Review the repair log (shown after opening) to see what was changed
4. Save the repaired file under a new name immediately

This error typically means some XML inside the XLSX is malformed — Excel's parser fixes what it can.

Frequently asked questions