How do i fix file format or file extension is not valid in excel

How To Change Excel File Extension xls, xlsx, xlsm, xlsb, xps, pdf

Show File Extensions (File Types). EMT 1666

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

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

The file format and extension dont match | Microsoft Excel | FIX TUTORIAL

Understanding File Types (.xls, .xlsx, .xlsm, .csv, .txt) in Microsoft Excel

Reduce Excel file size up to 90% with the Binary Workbook Format (Microsoft Excel .XLSB extension)

Part 1.3: Creating and Saving Your First Excel Spreadsheet | Beginner Excel Tutorial

1-7: Understand Common Excel file formats (XLSX, XLSM, XLSB, XLS, PDF)

Excel for Beginners - Save, Save As & Saving Different File Types

How to Remove File Extension from file name. #excel #exceltips #exceltipsinhindi #exceltutorial

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

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

How to Recover and Repair Corrupted Excel File

Excel Cannot Open the File Format/File Extension Is Not Valid/Corrupted – Latest Successful Methods

How To Fix Excel Cannot Open the File Format/File Extension Is Not Valid/Corrupted [Solved]

How to Save Excel File as a CSV File

How To Fix File Name Extensions Not Showing in Windows 10

VBA to Extract File Name and File extension from File Path - Get File Information in Excel