My aunt has .123 files in her HDD. She wants to open those files again. What program can she use to open/work with her files?

I heard about a program called Lotus Symphony. Can it be used for those files?

Wow! It really still exist? Its the 1st spreadsheet ever built Lol :)

Have you tried ms excel? If not working, search the web for the application name then search it here. Might be available.

If not, request it at pc request thread.