A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Try these fixes in order:
- Check whether the workbook is hidden.
- Open Excel.
- Go to View > Unhide.
- If a workbook appears in the list, select it and choose OK.
- Refresh the Excel window.
- Select the Minimize button in the top-right corner of Excel.
- From the taskbar, reopen or maximize Excel.
- This can make hidden data appear.
- Reset the file association for the spreadsheet file.
- Find one of the files that will not open correctly and copy it to the desktop.
- Right-click the file and select Properties.
- On the General tab, check the file type and the Opens with app.
- Select Change > More apps.
- Choose Excel and select Always use this app.
- Select OK.
- Repair Office.
- In Windows, open Settings > Apps.
- Select the Office installation.
- Choose Modify.
- Run Online Repair.
- If the issue is specifically file association related, a Quick Repair is also documented as a fix.
- Turn off Excel add-ins one at a time.
- In Excel, go to File > Options > Add-Ins.
- At the bottom, in Manage, select COM Add-Ins > Go.
- Clear one add-in, select OK, then restart Excel and test the file.
- Repeat for each add-in.
- If needed, repeat the same process with Excel Add-Ins.
- If the file opens after one add-in is disabled, that add-in is the cause.
- If none of the above works, open Excel first, then open the file from File > Open.
Important: one Microsoft troubleshooting path includes registry-related steps. Those steps should be followed carefully because incorrect registry changes can cause serious problems.
If the problem continues after these steps, contact Microsoft Support.
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