Is not valid win32 application windows 7?

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In this case you may rescue your probably corrupted excel file data by download xlsx file fixer tool now This item http://www.xlsxfixer.excelfilefixer.com will save your excel file info  more
It’s a compatibility problem and here is how to fix it Go to C:\Program Files (x86)\Microsoft Office\Office14 Find Excel.exe (sometimes it’s displayed just as Excel), right click and select ...   more
Apart from what Andie siad, I would also advice try & see, if the Office has been installed properly, or if Excel executable file is not corrupted. Just RUN - Excel - see if this works, wlse readjust ...   more
... and select the Microsoft Office application suite. Hit Change, click on ... If you are working on a Windows 7/ Vista OS, try running Excel ...   more

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