I am trying to open an .xlsx extension file but I'm getting the error message "The document Filename caused a serious error the last time it was opened." I have tried renaming without the x, and also opening in a different version of Excel, but the programme will not let me.
My Laptop runs Windows 8 with 8GB RAM, virtual memory 8GB, Excel 2013 32 bit.
Any help would be appreciated.
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