EX_ File Extension

Compressed Executable Format

File Type ex_
Developer Microsoft
Popularity
4.4 (38 votes)
Application Windows Installer
Category Backup Files, Compressed Files
Format Binary

What is a EX_ file?

The EX_ extension is used by Compressed Executable Format and falls under the categories of Backup Files and Compressed Files, covering 1215 files.

Microsoft, the developer of the Compressed Executable Format (EX_), has released file format and 242 programs designed to handle them.

EX_ file support extends to various operating systems, including Windows. There are 2 programs available to create a EX_ file, including popular tools like Windows Installer and Microsoft Windows.

Programs that support EX_ files

Windows ²

Windows

How to open a EX_ file?

If you are having trouble opening a EX_ file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

Thanks to their popularity, Windows Installer and Microsoft Windows are often the go-to programs for managing EX_ files. If you want the most recent release of Windows Installer, head over to the Microsoft site and download the version designed to run on all platforms.

After completing the installation, EX_ files should be recognized by the system and linked to Windows Installer.

Set Windows Installer as your default EX_ viewer

Set default app to open files on Mac

Right-click or Control + left-click on the desired EX_ file to open a menu of available actions;
Choose "Open in Application" and click "Other";
In the lower section of the window, you’ll find the "Enable" menu, with "Recommended Programs" pre-selected as the default option;
Select "All Programs" in this menu, and then search for Windows Installer. Check the box next to "Always open in app" to make sure it’s the default option.

Change a default app in Windows

To get started, right-click your EX_ file, then choose "Open With" and select "Choose Another Application" from the context menu;
From the list of applications in the pop-up window, find and select Windows Installer as your desired application;
Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening EX_ files.

Solving Common EX_ File Challenges

While EX_ files can sometimes present difficulties, most problems can be resolved quickly with minor software modifications. Check the tips below to help solve them.

What Causes Windows Installer to Crash Frequently?

Insufficient software updates are a likely cause of Windows Installer crashes. Be sure to install the latest updates for Microsoft products.

A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.

How can I restore a damaged EX_ file?

Start a data recovery program and open the damaged EX_ file. Then, choose the "Repair" option from the menu. Allow the recovery process to complete, which will automatically repair the damaged backup files.

How can I determine if my EX_ file is damaged?

Characteristics of corrupted EX_ backup files can include:

Windows Installer or other programs stop responding or crash when trying to handle the file;
Error notifications appear during file manipulation;
When opening the file, errors occur or the inability to access its contents;
Unexplained EX_ file size inflation;
Editing the archive in Windows Installer is hampered by poor overall performance;

How to edit a EX_ file?

To modify EX_ files, you need to install special software that makes it possible to open and edit backup files. Online EX_ editors are more restricted compared to software designed for Compressed Executable Format.

Best EX_ Editor Software in 2026

Taking the above factors into account, we have selected a list of EX_ editors currently available.

EX_ Editor Software	Developer	Platforms	Overall Rating
Windows Installer	Microsoft	Windows	4.7 out of 5 (33 reviews)

‹ EZE | EXY ›