Online XLSX Converter
Drag & drop your files here or click to upload
What is a XLSX file?
XLSX is the default spreadsheet format used by Microsoft Excel since Office 2007. It is based on the Open XML standard and stores data in cells organized by rows and columns.
XLSX files support formulas, charts, formatting, and large data sets. They are widely used for financial modeling, data analysis, and record keeping across industries.
How to open XLSX files
XLSX files can be opened with Microsoft Excel, Google Sheets, LibreOffice Calc, and many other spreadsheet applications. They are the standard format for spreadsheets today.
You can convert XLSX to PDF, CSV, or XLS using AnyConv or via built-in export options in Excel and other tools.
Key facts about XLSX
- Full name: Microsoft Excel Open XML Spreadsheet
- Extension: .xlsx
- MIME type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
- Developed by: Microsoft
- Initial release: 2007
Useful links and resources
Convert from XLSX
Convert to XLSX
FAQ
- 👍 What is the best XLSX converter?
- Perhaps our XLSX converter is the best. AnyConv is fast, free and does not require software installation.
- 🔺 How to convert Document files to XLSX?
- Choose files and upload them on the page. Select "to XLSX" and click "Convert". After a few seconds, you can download XLSX files.
- 🔻 How do i change XLSX to another format?
- Upload your XLSX-file on the page. Select target format and click "Convert". XLSX conversion takes a few seconds.
- 📱 Can I use XLSX converter on iPhone or iPad?
- Yes, you can convert XLSX files from iPhone, iPad and other mobile devices, because AnyConv XLSX Converter is a multi-platform web service.