CSV to Excel

Turn a CSV table into an Excel workbook in your browser and download the .xlsx file.

Drop a file here

or click to choose files · paste from clipboard

Files stay on your device — never uploaded

Processed on this device · Maximum file size 15 MB

How to convert CSV to Excel

  1. Select a .csv file.
  2. Check the recognized rows and column headers.
  3. Download the generated .xlsx workbook.

CSV stores plain text values, so converting it to Excel does not add formulas or recover formatting.

FAQ

Are my spreadsheets or documents uploaded?

No. Data conversion runs locally in your browser. The selected files and results are not sent to our servers.

What are the data file limits?

Input files are limited to 15 MB and tabular or text data to 100,000 rows. PDF text extraction is limited to 200 pages. Scanned PDFs are not processed with OCR.

How does CSV conversion choose field names?

CSV files use the first row as column headers. JSON objects are created using those headers. Keep header names unique for predictable results.

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JSON → Excel

Convert JSON records to an Excel workbook locally in your browser. Download XLSX without uploading your data.