Can't open any spreadsheet file

[sstrini0]

I had an open spreadsheet on my computer, and then we had a power surge. I restarted my computer, no battery backup, and now all my previously saved spreadsheets are blank. Please help!

[robleyd]

As soon as possible do the following:

Download Recuva (Windows only) or PhotoRec for Win, MacOS, Linux and other OSes (only one needed) and let it do an in-depth recovery of deleted files on your computer. You may get a file containing some or all of your data (or not). Do this as a first priority; other use of the computer may overwrite any existing but deleted files and prevent their recovery. There is no guarantee that you will recover anything useful.