Free · No signup · Private — runs in your browser

CSV to Excel

Turn a plain .csv file into a proper Excel .xlsx workbook in seconds. Columns are parsed automatically and your data stays private — the conversion runs entirely in your browser.

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Drop your .csv file here or click to browse

Your file is converted on your device — it is never uploaded.

One file is free — drag in several to batch-convert with Pro.

Need to edit, not just convert? Open the full Gridoly editor →

How it works

1Add your CSVDrag a .csv file onto the box above, or click to pick one.

2We convert itGridoly parses the rows and columns and builds an .xlsx workbook in your browser.

3Download ExcelGrab your ready-to-use .xlsx file — open it in Excel, Numbers or Google Sheets.

Frequently asked questions

Is the CSV to Excel converter free?

Yes — it is completely free with no signup, watermarks or limits.

Is my data uploaded anywhere?

No. The conversion happens entirely in your browser, so your file never leaves your device.

Will my columns and numbers be preserved?

Yes. Delimited values are mapped to spreadsheet columns and numeric cells are kept as numbers.

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