XLSX to CSV
Upload a XLSX file and download it as CSV. Free to start.
- Sent over HTTPS · link expires in 24 h
How it works
- Step 1:
Drop the XLSX file on the orange block above, or press “Choose XLSX”.
- Step 2:
Press “Convert to CSV”. The block shows the progress while the server converts the file.
- Step 3:
Press “Download” to save the CSV file. On Free the link works for 24 hours.
How XLSX to CSV conversion works
Converting XLSX to CSV extracts the cell values from a spreadsheet and writes them as plain comma-separated text, making the data importable into any database, analytics tool, or programming environment that reads CSV. XLSX is the XML-based Office Open XML spreadsheet format used by Microsoft Excel, storing cell values, formulas, formatting, charts, and pivot tables in a zipped XML structure. CSV stores only the raw cell values as delimited plain text: one row per line, fields separated by commas (or semicolons in some regional settings). Formulas are evaluated and their computed values are written to the CSV; charts, conditional formatting, and cell styles are discarded. Each worksheet in a multi-sheet workbook can be exported as a separate CSV file. The output encoding is UTF-8 by default, preserving Unicode characters in cell values. 1converter uses LibreOffice Calc in headless mode to evaluate formulas and export the active sheet or all sheets to CSV.
Sources and specifications
When to convert
What the CSV file is good for and why people convert to it.
- Universal compatibilityWorks with all spreadsheet software
- Database importEasy import into SQL, MySQL, PostgreSQL
- Importing data into databases
- Sharing data across different platforms
Where your file goes
- It travels to our server over an encrypted HTTPS connection and is converted there.
- The CSV file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.