Unless you deleted your old sheet, then it's still there.
Also, are you telling us you are unaware of the Save As command and the types you can Save As?
For some reason one of my excel files with data, text and charts has been converted to a mht file. Have no idea how this happened. Is there anyway I can get back to the original excel file? I have a dell Inspiron and use Windows 7 Home premium.
Help, my PC with Windows 10 won't shut down properly
Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?