spreadsheet / file
XLSX to CSV Converter
Export spreadsheet data into CSV with clear sheet, delimiter, and encoding choices.
This converter should always explain that CSV is a flat text export. Formulas, formatting, and multi-sheet structure do not survive.
Upload XLSX
Supported input: xlsx. Max file size: 100 MB.
Downloads stay available for 1 day on your current access level.
Ready files get a temporary download link that you can open or share.
Convert multiple files
If you repeat the same format change often, you can prepare a batch and process several files together.
Batch conversion is available on the Pro plan. Sign in to upload up to 25 files at once for this converter.
Step by step
How to use this converter
- 1
Choose a XLSX file
Start with a supported XLSX source and check that the file is the version you want to convert.
- 2
Review the format notes
XLSX to CSV Converter explains what is preserved, what can change, and which settings matter before upload.
- 3
Upload XLSX
Upload the source file, run the conversion, and download the finished CSV result from the temporary link.
- 4
Keep the original
Save your original XLSX file until you have checked that the CSV output fits the next app or publishing flow.
Expected output
You receive a CSV file that matches the stated converter limits. A core spreadsheet workflow that needs honest messaging about what CSV cannot preserve.
Before you convert
Common issues to check
- - sheet selection is required for multi-sheet files
- - delimiter and encoding must be explicit
- - formulas
- - styles
- - merged-cell behavior
Not ideal for
- - sheet selection is required for multi-sheet files
- - delimiter and encoding must be explicit
- - formulas
- - styles
- - merged-cell behavior
Before you start
You should know the result and the limits before the upload begins.
What stays
- - visible cell values from the selected sheet
What may change
- - formulas
- - styles
- - merged-cell behavior
- - multiple sheets
- - comments
Known limitations
- - sheet selection is required for multi-sheet files
- - delimiter and encoding must be explicit
Typical use cases
- - analytics import
- - ETL prep
- - CSV upload to SaaS tools
Available options
- - sheet selection
- - delimiter
- - encoding
- - quote mode
FAQ
What happens during XLSX to CSV conversion?
The converter exports one sheet into flat CSV text, which keeps values but drops spreadsheet-only features.
Are uploaded files kept permanently?
No. Files are kept only for a short time and downloads are served through temporary links.
Can quality or formatting change?
Yes. Each converter page calls out what is preserved, what may be lost, and which settings matter before upload.