Open XLSX File

Information, tips and instructions

XLSX Frequently Asked Questions

What is XLSX file?

You can open XLSX file with Microsoft Excel application, part of Microsoft Office software suite. XLSX file format was introduced starting from Microsoft Excel 2007. Prior to that, Microsoft Excel used XLS file format which is based on Compound File Binary Format (CFBF).

How can I open XLSXfile?

The best software to open XLSX file is Microsoft Excel version 2007 or later. You can also use online version of Microsoft Office to open XLSX files.

Are XLSX files binary?

XLSX files are compressed XHTML files. It means that XLSX file is binary but it can be decompressed and converted into textual XML form. In this form it can be read and modified by any text editor.