CSV and XLSX Converter

Convert spreadsheets between CSV and Excel XLSX locally. Your file stays in this browser.

Click or drag a file to convert

Accepts .csv files

Magmatum Spreadsheet Systems · Local Processor

How to use

How to use the CSV and XLSX Converter

Convert spreadsheet files between CSV and XLSX directly in your browser without uploading files to a server.

Select whether you want CSV to XLSX or Excel to CSV.

Choose a file from your device or drag it into the upload area.

Run the conversion and wait until the new file is ready.

Save the converted file to your device and use it in Excel or other spreadsheet tools.

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