Types of XDM Files

Primary XDM File Association

.XDM

File Format:	.xdm
File Type:	X-Windows

Created by:	X Consortium, Inc.
File Category:	Uncommon Files
Registry Key:	HKEY_CLASSES_ROOT\.xdm

Software Programs That Open The X-Windows:

X-Windows by X Consortium, Inc.

Windows

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Troubleshooting Problems Opening XDM Files

Common Problems Opening XDM Files

X-Windows is Not Installed

When you double-click your XDM file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If this is the case, it's usually due to the fact that you do not have X-Windows for %%os%% installed on your computer. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.

Tip: If you know of another program that can open your XDM file, you can try opening it by selecting the application from the programs listed.

Wrong Version of X-Windows is Installed

In some cases, you might have a newer (or older) version of a X-Windows file that is unsupported by your installed application version. If you do not have the proper version X-Windows (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Sometimes you can get a clue about the version of XDM file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).

Summary: In either case, the majority of problems opening XDM files are related to not having the correct software application installed on your computer.

Other Causes of XDM File Opening Problems

Although you might already have X-Windows or another XDM-associated software installed on your computer, you can still encounter problems opening X-Windows files. If you are still having problems opening XDM files, there may be other issues that are preventing you from opening these files. These other problems include (listed in order from most to least common):

• Invalid XDM file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the XDM file in the Windows registry
• Incomplete or bad installation of a software application associated with the XDM format
• Your XDM file is corrupted (issues with your X-Windows file itself)
• Your XDM is infected with malware
• Device drivers of the hardware associated with your XDM file are corrupt or out-of-date
• Your computer does not have the adequate system resources to open the X-Windows format