Excel Spreadsheet Converter — Convert Excel Spreadsheet Files Online Free

Convert Excel Spreadsheet files to and from 23 formats. Free online Excel Spreadsheet converter with no signup required.

Quick Answer

ChangeThisFile supports 23 conversion routes involving Excel Spreadsheet files — 15 conversions from Excel Spreadsheet and 8 conversions to Excel Spreadsheet. All conversions are free with no signup required.

Excel Spreadsheet Format Details

Full NameOffice Open XML Spreadsheet
DeveloperMicrosoft / Ecma / ISO
Year Introduced2007
MIME Typeapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheet
File Extension.xlsx
Typical File Size10KB - 50MB
Max Supported SizeNo limit (browser) / 25MB free / 500MB Pro (server)
Open StandardYes (ISO/IEC 29500)

Convert From Excel Spreadsheet

15 formats you can convert Excel Spreadsheet files to

→ Excel Spreadsheet to CSV → Excel Spreadsheet to HTML → Excel Spreadsheet to JPEG → Excel Spreadsheet to JSON → Excel Spreadsheet to Markdown → Excel Spreadsheet to Newline Delimited JSON → Excel Spreadsheet to OpenDocument Spreadsheet → Excel Spreadsheet to PDF → Excel Spreadsheet to PNG → Excel Spreadsheet to SRT → Excel Spreadsheet to LaTeX → Excel Spreadsheet to TSV → Excel Spreadsheet to Excel Spreadsheet (Legacy) → Excel Spreadsheet to XML → Excel Spreadsheet to YAML

Convert To Excel Spreadsheet

8 formats you can convert to Excel Spreadsheet

→ CSV to Excel Spreadsheet → JSON to Excel Spreadsheet → JSON Lines to Excel Spreadsheet → OpenDocument Spreadsheet to Excel Spreadsheet → TSV to Excel Spreadsheet → Plain Text to Excel Spreadsheet → Excel Spreadsheet (Legacy) to Excel Spreadsheet → YAML to Excel Spreadsheet

Frequently Asked Questions

XLSX is the default spreadsheet format for Microsoft Excel since 2007. It is an XML-based format that stores data, formulas, formatting, charts, and macros in a compressed ZIP container.

Yes. The XLSX to CSV converter runs in your browser using SheetJS. It extracts the first sheet and exports it as comma-separated values. Your spreadsheet data never leaves your device.

Go to the CSV to XLSX converter page and drop your CSV file. SheetJS in your browser creates a properly formatted Excel workbook with auto-detected column types.

Yes. The XLSX to JSON converter creates a JSON array of objects from your spreadsheet, using the header row as keys. This runs in your browser for privacy.

Yes. The XLSX to PDF converter uploads your file to the server where LibreOffice renders it as a PDF, preserving formatting, cell borders, and page layout.

No. Browser-based conversions use SheetJS and server-based conversions use LibreOffice. No Microsoft Office installation is required.

Ready to convert your Excel Spreadsheet file?

Convert Excel Spreadsheet files instantly — free, no signup required.

Start Converting