Previous Versions can rescue a document after an accidental edit, but clicking Restore directly may replace the current copy. Microsoft explicitly warns that the replacement cannot be undone through that action. The safer workflow finds the correct folder and date, previews the older version, restores to a new location and compares the two. This also avoids confusing a File History version with an unrelated cloud-sync conflict.
Before you start
Keep the current file intact and make a copy of it before experimenting. Connect the File History drive used when the older version was created. Note the approximate time before the unwanted edit, the exact original path and the file extension. If the file is in OneDrive, check that service's version history separately too.Do it step by step
- Navigate in File Explorer to the actual folder containing the damaged file, not merely its library shortcut. Right-click the file or containing folder and choose Restore previous versions.
- Review available dates and select a version from before the mistake. If the file was deleted, inspect a previous version of the parent folder.
- Use Open or preview to confirm the older content is the version you want. Do not infer correctness from the date alone if multiple edits happened that day.
- Choose Restore to... and select a new empty folder, preserving the current file. Microsoft warns a direct Restore can overwrite the existing copy.
- Open both versions in the relevant app and compare content, formulas, attachments or formatting. Copy only the needed material into a new working document when possible.
- After verifying the result, save it under a clear name and keep both copies until colleagues or the app confirm it behaves correctly.