Not a valid file
 

Hello,

I'm using LotusNotes. I have .nsf format file which I use regularly on (daily basis). I could open it before but now i keep getting “Not a valid file.”

Can you help?
Thanks.

Welcome to EMD :)

Im sorry your having issues..... Does this happen with EVERY FILE you now create with lotus?

If you open notepad and make a new test file "sdd.nsf" does it open that???

I am afraid your file has been corrupted. It is a very common thing to happen in a HDD crash.
If the data is important enough for you, you may try to repair nsf file.
See this page: https://www.repairtoolbox.com/lotusnotesrepair.html