Does it auto-detect the delimiter?

Yes. Commas, semicolons, and tabs are auto-detected. You can also specify manually.

Can I convert TSV files too?

Yes. Tab-separated files (.tsv) are fully supported — just select the tab delimiter.

Yes. The first row is detected as a header and given bold formatting and a light background.

UTF-8 encoding is fully supported, including international characters and emoji.

No row limit beyond the file size restriction. Excel itself supports up to 1,048,576 rows.

SPREADSHEET

Import CSV data into a formatted Excel (.xlsx) workbook — complete with auto-sized columns, entirely in your browser.

Files never uploadedInstant conversionNo account needed

Loading converter…