I'm sorry to hear about your situation with the corrupted Excel file. It can be really frustrating when important data becomes inaccessible. Here are a few more things you can try to recover or repair your corrupted Excel file:
1. Open and Repair Feature in Excel: Sometimes Excel itself can attempt to repair a corrupted file. To do this, open Excel, go to File > Open, select your corrupted file, and then choose "Open and Repair" from the drop-down menu.
2. Use Excel's External References: If you have another Excel file that references the corrupted one, you can try to open the referencing file. Sometimes this method can help in recovering some data.
3. Try to Open the File in Another Program: You can try opening the corrupted Excel file in a different spreadsheet program like Google Sheets or LibreOffice Calc. Sometimes these programs can read and repair corrupted Excel files.
4. Check for Temporary Files: Sometimes Excel creates temporary backup files that might contain the data you need. Look for files with a .tmp extension in the same folder as your corrupted file.
5. Data Recovery Software: If all else fails, you can try using professional data recovery software like Recuva, Disk Drill, or Stellar Data Recovery. These tools can sometimes help in recovering lost or corrupted files.
Remember to always make a copy of the corrupted file before attempting any repairs or recovery methods to avoid further data loss. I hope one of these methods helps you recover your Excel file.