Error's in office files!

[Florian]

Hi,
I change my computer and I save my office files in server.
When I re-put back in my new computer, I cannot open any office files, I have errors like:"File mot Loaded Completely"... or "The file is not in recognizable format"..
You have a suggestion?
Thank you

 

[Florian]

Hi,
Yes files created with office.
I reinstall the same software.