Document Converters

XLSX to CSV Converter

Convert Excel .xlsx spreadsheets to CSV in your browser without installing Excel. Upload the file, choose which sheet to export, and download the CSV. All processed locally.

File processed locally No sign-up required Instant download
Excel input CSV output Browser-only

Input

Excel file

Excel

Drop Excel file here

or click to browse · processes locally in your browser

Conversion options

Document processing runs entirely in your browser; files never leave your device

Input File Output Text Browser-only No upload by default

Features

  • Reads multi-sheet XLSX files
  • Sheet selector, choose which tab to export
  • Proper handling of numeric, date, and text cells
  • Download as .csv file
  • Browser-only. File never uploaded
  • No Excel installation required

How to use it

  1. Upload your .xlsx file.
  2. Select the sheet you want to export from the dropdown.
  3. Click Convert.
  4. Download the .csv file.

Use cases

  • Exporting Excel data to CSV for database import
  • Converting spreadsheet reports to CSV for Python/R analysis
  • Moving Excel data to a CSV-only system
  • Sharing spreadsheet data with tools that don't read XLSX

Limitations

  • You can choose a worksheet and delimiter before exporting. Formula cells use the cached value stored in the workbook when available.
  • Complex styling, embedded media, comments, tracked changes, and macros are not preserved in this phase.
  • Very large documents depend on browser memory and device performance.
See also

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Questions & answers

Frequently asked

Can it convert all sheets at once?

Currently one sheet at a time. Select each sheet individually and export a CSV for each.

Does Excel to CSV upload my document?

Your file is processed in your browser and is not uploaded.

What does Excel to CSV create?

It creates CSV text from the selected worksheet. You can choose a worksheet and delimiter before exporting. Formula cells use the cached value stored in the workbook when available.

Will Excel to CSV preserve every document detail?

Document formats can contain styles, embedded media, comments, fields, tracked changes, and metadata. This browser tool focuses on the core text or generated document described on the page.