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XLSX to CSV Converter

Convert any Excel sheet to CSV — pick a delimiter, pick a sheet, or zip all sheets at once. Runs in your browser, no upload.

Drag a .xlsx or .xls file here or

Supports XLSX, XLS, ODS — picks each sheet separately.

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How to use XLSX to CSV

  1. Drop a spreadsheet file or click browse.
  2. Pick the sheet and delimiter.
  3. Copy the CSV or download as .csv (or download all sheets as .zip).

What is XLSX to CSV?

Loads .xlsx, .xls, and .ods spreadsheets via SheetJS in the browser. You can pick which sheet to export, choose the CSV delimiter (comma/semicolon/tab/pipe), and either download one sheet or bundle every sheet into a single ZIP.

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FAQ

What about formulas?
Cell values are exported — the result of formulas, not the formulas themselves.
Are number formats preserved?
Numbers export as raw values (no thousand separators or currency symbols). Use the JSON exporter if you need typed values.

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Author

SC
Sarah Chen"The Data Whisperer"

Data Analyst & CSV Specialist

Sarah has spent more than a decade wrangling spreadsheets, debugging CSV exports, and teaching teams how to make data work for them. She previously led data-quality initiatives at a fintech unicorn, where she reduced reporting errors by 40 percent through automated validation pipelines. When she is not optimizing queries or writing about data tooling, you will find her mentoring junior analysts at local bootcamps and speaking at data literacy meetups.

📖 XLSX to CSV on Wikipedia·Office Tools on Wikipedia·XLSX to CSV on Britannica

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