Is this CSV to Excel converter free?

Yes. Convertr converts CSV and TSV files to XLSX for free with no account and no watermark.

Which delimiters are supported?

The converter supports comma, semicolon, tab and pipe delimiters. Auto mode samples the file and chooses the most consistent delimiter it finds.

What is the maximum CSV file size?

You can upload files up to 1 GB, the same intended upload limit as other Convertr conversion tools.

Are spreadsheet contents logged?

No. Analytics use only safe buckets such as row count, column count, file size, delimiter and failure reason. Filenames, headers, sample rows and cell values are not sent to analytics.

CSV to Excel Converter

Upload a CSV or TSV file, confirm delimiter and header-row settings, preview the structure, and download an editable XLSX workbook.

Choose CSV or TSV file

No file selected

Files up to 1 GB. Preview reads only a small sample in your browser.

Delimiter

Header row

Sheet name

Ready

Preview

No rows parsed yet

Spreadsheet imports

Turn exported customer lists, reports, logs and tabular datasets into a workbook that spreadsheet apps open cleanly.

TSV and pipe-delimited files

Use the delimiter control for tabs, semicolons or pipes before creating the XLSX output.

Header-aware workbook

When a header row is selected or detected, the first row is styled and frozen in the Excel workbook.

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Developer Tools

Open browser-native format and validation tools.