_XLSX File Extension

_XLSX file extension is created by Microsoft, also known as Renamed Microsoft Excel Open XML Spreadsheet. _XLSX has been classified as Spreadsheet Files. This file is saved during a zipped format. you will view the contents by unzipping it with a file decompression program. You can open _XLSX files in File Splitter Joiner program.

Renamed Microsoft Excel Open XML Spreadsheet File Type

Renamed Microsoft Excel Open XML Spreadsheet File Type

Extension	._xlsx
Developer	Microsoft
Popularity	Very Common Common Average Uncommon Rare 5.0 (2 Votes) Thank you for voting!Already voted, thanks!
Mime Type	mime-type/not.available
Default Program	File Splitter Joiner
Category	Spreadsheet Files
Format	Zip
Updated	6/1/2025

What is a _XLSX File Type?

You can rename an XLSX file by changing the word.... xlsx" l' extension to .xxx". After renaming, you can open the XLSX file with a variety of programs, such as Microsoft Excel, FreeOffice Calc and Apple Numbers.

XLSX files can be created by e-mail programs, especially Windows Live Mail when sending XLSX files by e-mail. Windows Live Mail can rename files if the name of the file ends in a quot quot quot quot quot quot quot quot quot quot in the appos extension. For example, the sample xlsx is changed to a sample xlsx by the e-mail program. It also happens frequently with .DOC, .DOCX and .XLS files.

Most XLSX files are created by Microsoft Excel. However, they can be created at the help of another spreadsheet, such as LibreOffice Calc or Apple Numbers.

Free online _XLSX Tools & Apps

We have also the free online ._XLSX (Renamed Microsoft Excel Open XML Spreadsheet) file extension apps that can allow to view, edit, convert from to _XLSX, merge, split and compare the _XLSX files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

_XLSX Files Common Issues

There are few common issues with the Renamed Microsoft Excel Open XML Spreadsheet ._XLSX File Extensions while opening the ._XLSX files on Windows and MacOs, we have solution to those issues such as:

Can't Open _XLSX Files?

1. You must have supported software programs installed for Renamed Microsoft Excel Open XML Spreadsheet on your system such as File Splitter Joiner.
2. Associate default File Splitter Joiner File Splitter Joiner program for *._xlsx (Renamed Microsoft Excel Open XML Spreadsheet) files.
   
   

   Associate _XLSX Default Program on Windows

   1. Right-click a *._XLSX (e.g example._xlsx) file and click Open With.
   2. In the Open with dialog box, click File Splitter Joiner File Splitter Joiner program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open ._xlsx files.
   
   

Related _XLSX File Extensions

_XLSX default file extension is ._XLSX and other similer related extensions are:

All Platform Software Programs for _XLSX File Extension

List of all softwares that can open the _XLSX files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open _XLSX File on Windows

	Software	License	Developer
	File Splitter Joiner 000 for Windows	Free	File Splitter Joiner

Open _XLSX File on Mac OS

	Software	License	Developer

Open _XLSX file on Linux

	Software	License	Developer

Open _XLSX file on Web

	Software	License	Developer

Open _XLSX file on iOS

	Software	License	Developer

Open _XLSX file on Android

	Software	License	Developer

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About _XLSX - Renamed Microsoft Excel Open XML Spreadsheet

Updated 6/1/2025

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