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Format Conversion
Convert .xls files to .xlsx format. Note: Only supports converting old .xls files to new .xlsx format.
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Tool usage guide
The Excel to .xlsx Converter allows you to quickly transform legacy .xls spreadsheet files into the modern .xlsx format, ensuring compatibility with current versions of Microsoft Excel and other spreadsheet software.
Background
An analyst retrieved a decade-old financial report in .xls format that would not open in their current version of Excel.
Problem
The file was incompatible with modern software, preventing data analysis.
How to use
Uploaded the legacy file and initiated the conversion to .xlsx.
Outcome
The file was successfully converted to .xlsx, allowing the analyst to open, edit, and perform calculations immediately.
Background
The department used an outdated .xls template for inventory tracking that caused errors in newer spreadsheet applications.
Problem
The old format caused compatibility warnings and limited the use of modern features.
How to use
Uploaded the template and renamed the output to 'Inventory_Template_2026.xlsx'.
Outcome
The team received a modernized template that functions perfectly in current software environments.
This tool specifically supports converting legacy .xls files to the modern .xlsx format.
Yes, the tool supports files up to 10MB in size.
Yes, the conversion process maintains your data, formulas, and basic formatting during the transition to .xlsx.
No, this tool processes one file at a time.
Your files are processed securely and are not stored on our servers after the conversion is complete.