CSV to XLSX — Convert Online
Turn a CSV file into a fully formatted Excel spreadsheet (XLSX).
Drop a file or click to choose
csv — до 25 МБ
Files are deleted right after processing — we do not store or view them.
The CSV to XLSX converter turns a text CSV file — say, an export from a database, CRM, or other program — into a proper Excel spreadsheet that's easy to view, format, and further edit with formulas and styles.
To convert CSV to XLSX, upload your file above and download the result. Conversion runs on the server via LibreOffice Calc, parsing the CSV with standard defaults (comma delimiter, UTF-8 encoding) — enough for most CSV files. The source file is deleted right after conversion. Maximum size is 25 MB. Need the reverse? Try XLSX to CSV.
Frequently asked questions
Comma and UTF-8 encoding by default — standard settings that suit most CSV files.
Yes, the result is a regular XLSX workbook that opens in Excel, LibreOffice Calc, and Google Sheets for editing.