A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
To recover your unsaved file, please follow these steps:
- Open Microsoft Excel.
- Click on the "File" tab.
- Click on "Open"
- Click on "Recover Unsaved Workbooks" at the bottom of the list.
- Look for the file in the list of unsaved workbooks. If you see the file, click on it to open it.
- If you don't see the file, unfortunately, it may not be possible to recover it.
Regarding the CAD file, you may need to contact the software provider or seek assistance from a CAD specialist.