XLSX – Microsoft Excel Workbook
XLSX is the standard Excel format. It stores sheets, formulas, formatting and charts in a zipped XML package.
More XLSX conversionsDrop your XLSX files here
or click to choose XLSX files · up to 95MB each
How to convert XLSX to CSV
- Choose your files. Click Select File or drag your XLSX files into the upload box. You can add many at once.
- Pick the settings. CSV is already selected as the output format. The conversion starts as soon as a file is added.
- Download. Each file appears in the list when it is ready. Download them one by one, or all together with Download all.
Why convert XLSX to CSV?
CSV is the universal format for importing data into databases, accounting software, email tools, Google Contacts and online shops. Converting an Excel sheet to CSV is often the required first step.
When to keep the XLSX
Keep the XLSX: the CSV contains only values, without formatting, formulas, colours, charts or extra sheets.
Tips for the best result
- Only the first sheet is exported. Move the sheet you need to the first position before converting.
- Formulas are saved as their current values.
- The CSV uses commas between values and UTF-8 text.
Common problems and fixes
- Data from my other sheets is missing.
- CSV holds one table, so only the first sheet is converted. Save each sheet as its own workbook to export it.
- Dates look different.
- Dates are written as text in a standard form. Check the import settings of the program you load the CSV into.
CSV – Comma-Separated Values
CSV stores table data as plain text with values separated by commas. Almost every spreadsheet and database can import and export it, but it keeps no formatting or formulas.
More CSV conversionsConverting XLSX to CSV
- CSV and TSV keep only the first sheet and no formatting.
Frequently asked questions
Why does my import tool need CSV?
CSV is plain text that every program can read, so it is the common language between spreadsheets and other software.
Is formatting kept?
No. CSV stores only the values of the cells.
How do I convert XLSX to CSV?
Click Select File or drop your XLSX file onto the upload box. The converted CSV appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Is it really free?
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Are my files stored?
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
Will quality drop?
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.
How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.