Open xlsx file

xlsx file icon Did your computer fail to open xlsx file? We explain what xlsx files are and recommend software that we know can open your xlsx files.

What is xlsx file?

Files with xlsx extension are s used by Microsoft Excel for its workbooks (spreadsheets) in Office Open XML format. XLSX is the latest spreadsheet format used by Excel with adoption of XML formatting first used in Office 2000. While older xls files were binary in nature, xlsx spreadsheets are using somewhat altered XML scheme.

xlsx file description

File extension xlsx is associated with Microsoft Excel, one of the most popular and powerful tool for creating spreadsheets, graphs and much more.

The xlsx files are used in Microsoft Excel 2007/2010/2013/2016 or Office 365 on-line service for workbooks and spreadsheet document files as well as Excel for Android, iOS and Windows Phone platforms.

They serve the same purpose as the Microsoft Excel 97 to 2003 Workbook files (xls file extension), but use the new file extensions and file formats for Excel Spreadsheets based on Office Open XML format developed by Microsoft.

XLSX format uses ZIP compression for smaller file sizes.

MIME-type used for Microsoft Excel .xlsx spreadsheets:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Software that will open xlsx file

Microsoft Excel

A popular spreadsheet application distributed with Microsoft Office suite

Microsoft Excel for Mac

A popular spreadsheet application from the Microsoft Office suite

Office 365

Subscription-based service for Microsoft Office applications


What file extension actually is?

Simply put, file extensions are the characters after the dot in the file name, so for example filename.mp3 has file extension „mp3“. This helps Windows to identify which program should be used to open the file.

We can help you to open your file

Our database contains a huge list of different file extensions, usually with detailed description and programs that can be used to open or otherwise work with that particular file type.

Only original software

Every software listed in our database is verified and ve provide link to the developer or to the software own website, which should hopefuly be enough for you to download the most recent version of the program.