XLS to XLSX Pro

Convert legacy XLS spreadsheets to modern XLSX with a browser file check first, then use Pro conversion for editable Excel output.

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Convert XLS to XLSX

Upload a legacy XLS spreadsheet and check the file details in your browser first. Browser-only tools cannot reliably convert old binary Excel workbooks, so Pro conversion creates a modern XLSX file using credits. Download converted files right away; output files are not saved.

XLS to XLSX Pro

Convert XLS to XLSX

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