Open XLSX file - The best software for opening .xlsx files

XLSX files: what are they and how do I open them?

Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

Microsoft Excel XML workbook

Latest versions of Microsoft Excel use .xlsx extension for the default workbook format, based on the Office Open XML specification. These files are modern version of XLS format

Further details:

XLSX file is used for the default format in Microsoft Excel. It is the default file format for Microsoft Excel 2007 and later versions.

The XLSX file format is based on the Open XML standard, which allows for the creation of documents that can be read by multiple applications, platforms, and internet browsers. It replaced the previously used XLS format.

This format is used for storing spreadsheet data and charts, and it can be opened and edited with various applications in addition to Excel, such as Google Sheets and OpenOffice Calc.

Open file with:

Microsoft Excel

A popular spreadsheet application distributed with Microsoft Office suite

Microsoft 365

A comprehensive suite of office applications and cloud-based productivity and collaboration tools

Office 365

Subscription-based service for Microsoft Office applications

Microsoft Excel for Mac

A popular spreadsheet application from the Microsoft Office suite

Microsoft Office

One of the most popular and powerful office suites on market

Microsoft Office for Mac

The latest release of Microsoft's productivity suite for Mac

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.xlsx" has the file extension "xlsx". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.