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Excel cannot open the file "filename" because the file format


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    New Member

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Hi All,


My PDF, word, Excel files have been corrupted and a error coming 


Excel cannot open the file "filename" because the file format or file extension is not valid.


i have formatted the system and installed new software but issue still persisting. all system also scanned with microsoft antii virus.


Pls helm in this regards.


image attached herewith


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    Malware Expert

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Can you attach one of the files that won't work?


Have you checked the RAM and the hard drive?


Get the free version of Speccy:

(Look in the upper right for the Download
Latest Version button  - Do NOT press the large Start Download button on the upper left!)  Download, Save and Install it.  Run Speccy.  When it finishes (the little icon in the bottom left will stop moving), File, Save as Text File,  (to your desktop) note the name it gives. OK.  Open the file in notepad and delete the line that gives the serial number of your Operating System.  (It will be near the top about 10 lines down.) Attach the file to your next post.

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