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Spreadsheet Format

XLSX Converter — Free Online

Convert Microsoft Excel Spreadsheet files to and from other formats. Fast, free, no registration required.

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How to Convert

1

Upload your XLSX file by dragging it into the upload area or clicking to browse.

2

Select the output format you want to convert to (or from) XLSX.

3

Click Convert and download your converted file in seconds.

Convert to XLSX

CSV to XLSX→XLS to XLSX→ODS to XLSX→SXC to XLSX→XLSM to XLSX→XLSX to XLSX→OTS to XLSX→XLT to XLSX→

Convert from XLSX

XLSX to CSV→XLSX to XLS→XLSX to ODS→XLSX to SXC→XLSX to XLSM→XLSX to XLSX→XLSX to OTS→XLSX to XLT→

What is XLSX?

XLSX is the modern Microsoft Excel format. It's the standard for spreadsheets containing data, formulas, charts, and pivot tables.

Format Details

Full Name
Microsoft Excel Spreadsheet
Extension
.xlsx

Key Features

  • Spreadsheet
  • Formulas
  • Charts
  • Data analysis

Frequently Asked Questions

Upload your file, select XLSX as the output format, and click Convert. Your converted file will be ready to download in seconds.
You can convert most spreadsheet formats to XLSX, including CSV, XLS, ODS, SXC, XLSM, and more.
Yes! You can convert up to 5 files per day completely free. No registration required.