Hello!

I have a issue, someone has accidently managed to save a excel over another excel sheet.

We had excel sheet, named A.xls (with a lot of data). Then, someone managed to open excel sheet, named B.xls, then saved it with name like A.xls.

Question is, how can I roll-back this? Is it possible? We don't have a backup.....

Are there any programs or hot tips to be given?

Regards