File Extension Search

.ex_ File Extension

Developer: Microsoft
File type: Compressed Executable File
You're here because you have a file that has a file extension ending in .ex_. Files with the file extension .ex_ can only be launched by certain applications. It's possible that .ex_ files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .ex_ file?

A compressed executable file included in installation disks of programs developed for computers running on Microsoft Windows-based systems is saved in the EX_ format. These EX_ files are encoded and compressed using specifications and standards proprietary to Microsoft. This is done to reduce the size of the EXE files created as installer scripts for the corresponding program, since installation disks contain many program files required to install the Microsoft Windows application. Certain files in an installation disk are implemented with functionalities that can rename the .ex_ extension of these installer files to the .exe extension, then these renamed EXE files are decompressed by other files in the installation disk and the OS before the EXE file is initialized to start the installation process. The Makecab application is classified as file compression software bundled with many Microsoft Windows-based systems, and this program can be used to create an EX_ file. The compression and encoding specifications implemented into an EX_ file is similar to the compression and encoding standards implemented into DL_ files, which are compressed DLL (Dynamic Link Library) modules.

how to open a .ex_ file?

Launch a .ex_ file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .ex_ file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .ex_ files aren't yet associated with it. In this case, when you try to open a .ex_ file, you can tell Windows which application is the correct one for that file. From then on, opening a  .ex_ file will open the correct application. Click here to fix .ex_ file association errors

applications that open a .ex_ file

Microsoft Expand

Microsoft Expand

Microsoft Expand is a command tool (Expand.exe) from Microsoft that is used to retrieve compressed files from distribution disks. It is a command from the recovery console that is used to extract a file or multiple files from a compressed file. The retrieved file is usually for the replacement of damaged files in the operating system. The command-line option in executing Expand follows the convention expand [-r] source [destination] [-d [-f:files]] [ [-f:filesdestination]. The parameter [-r] renames the expanded files, [-d] displays the list of files in the compressed source, and [-f] specifies the .cab file for expansion. The destination for a the expanded file must be a directory and is composed of a drive letter and colon, a directory name, a file name, or a combination. Expand.exe supports opening of updates for early versions of Windows and Windows Vista, and can be used to examine updates for Windows Vista on a Windows XP or Windows Server 2003 operating system.

a word of warning

Be careful not to rename the extension on .ex_ files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .ex_. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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