How to Fix Excel Cannot Open The File Because The File Format or Extension is Not Valid

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Excel cannot open the file '.xlsx' because the file format or file extension is not valid - ⚠️SOLVED

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【2023】Excel cannot open the file because the file format or file extension is not valid| 6 Fixes

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[2023] 8 Ways To Solve Excel Cannot Open Because The File Format Or File Extension Is Not Valid

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[Fixed] Excel Cannot Open Because The File Format Or File Extension Is Not Valid

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[5 WAYS]How to repair Corrupted Excel File? | Excel Cannot Open Because The File Format Is Not Valid

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

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How to Fix 'Excel Cannot Open The File Because The File Format or File Extension is Not Valid' Error

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Fix Excel Cannot Open the File Because the File Format or File Extension Is Not Valid | How To

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Fix : Excel cannot open the file because the file format or file extension is not valid

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[2025 Updated] Excel Cannot Open the File Because the File Extension is Not Valid - Fixed

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How to Fix Excel Cannot Open the File?

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How to FIX Excel Cannot Open the File Because the File Format or File Extension Is Not Valid

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Fix Error 'Excel Cannot Open the File Because the File Format or File Extension Is Not Valid'

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File Format and Extension don't Match in Excel File | The File Could be Corrupted or Unsafe

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Fix Excel cannot open the file '.xlsx' because the file format or file extension is not valid

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How to Fix File Format or File Extension is Not Valid in Excel