Good Evening...when I first received my Dell laptop, I copied a file that I had created on another laptop onto mine.  I created spreadsheets , on that other laptop, in MS Excel 2000. They seemed to convert over fine; then a couple of days ago, as I was in this file, I was looking at one of the spreadsheets in print preview, and that screen locked. I had to shut the whole program down thru the Windows Task Manager. When I tried to go back in and open that file again, all the spreadsheet files sent me a message saying that the spreadsheet was an invalid Win32 application.

All of the text documents converted over to WordPerfect without a problem...but now every time I create a spreadsheet in Quattro Pro and save it, then go back in to open it, I get a message saying that the Quattro Pro 10 Loader is experiencing difficulties loading/opening the spreadsheet.  Did I corrupt the Whole Quattro Pro 10 program on my laptop by by starting something in Excel and then loading it on my computer?  How can this be fixed?