XLSX to CSV — Convert Online

Convert an Excel spreadsheet (XLSX) to CSV — a simple text format for importing into other programs.

Drop a file or click to choose
xlsx, xls — до 25 МБ
Files are deleted right after processing — we do not store or view them.

The XLSX to CSV converter turns an Excel spreadsheet into CSV — a simple text format where cell values are separated by commas. Virtually any data program understands CSV: other spreadsheet editors, databases, Python scripts, e-commerce import systems, and CRMs.

To convert XLSX to CSV, upload your file above and download the result. Conversion runs on the server via LibreOffice Calc, exporting with a comma delimiter and UTF-8 encoding by default. Note that CSV doesn't store formulas, cell formatting, or multiple sheets (only the first/active sheet is kept) — just the raw values. The source file is deleted right after conversion. Maximum size is 25 MB. Need the reverse? Try CSV to XLSX.

Frequently asked questions

No, CSV is a format with no formatting or formulas — only the computed cell values are kept.
Only the active (first) sheet ends up in the CSV — the CSV format doesn't support multiple sheets in one file.

You may also need

CSV → XLSXXLSX → PDFPDF → XLSXPDF → CSVE-books