Varieties of IDML Files

Chief IDML Description

.IDML

Extension:	.idml
Class:	Adobe InDesign Markup Language File

An IDML file contains several XML files, representing a complete InDesign document. It is stored as a compressed package by Zip compression.

Created by:	Adobe Systems Incorporated
File Category:	Page Layout Files
Location:	HKEY_CLASSES_ROOT\.idml

Software Programs That Open The Adobe InDesign Markup Language File:

Adobe InDesign by Adobe Systems Incorporated

Windows

Mac

Adobe Creative Cloud by Adobe Systems Incorporated

Windows

Mac

Linux

Web

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Troubleshooting Problems Opening IDML Files

Frequent IDML Opening Issues

Adobe InDesign is Not Installed

When trying to open your IDML file, you get the error "Can't Open IDML File Type". Customarily, this means that Adobe InDesign is not installed on %%os%%. You won't be able to double-click to open your IDML because your OS doesn't know what to do with it.

Tip: When another IDML application is installed, you can choose to open it by selecting "Show Apps" and using that program.

Outdated Adobe InDesign

Occasionally, you might have an outdated version of Adobe InDesign installed that's incompatible with your Adobe InDesign Markup Language File type. You will need to download a newer version of Adobe InDesign if you don't have the right version. The primary cause of this problem is that your Adobe InDesign Markup Language File file was created by a different (newer) version of Adobe InDesign than what's installed.

Tip: Find clues on the correct software version by right-clicking your IDML file and clicking "Properties".

Ultimately, most of the difficulties opening IDML files are due to having the wrong version of Adobe InDesign installed.

Additional IDML Opening Issues

In the majority of cases, installing the right version of Adobe InDesign will resolve your issue. There can be other issues - unrelated to software - preventing you from opening IDML files. Problems unrelated to software:

• File references in the Windows Registry for IDML are wrong
• Mistaken removal of the Windows registry IDML description
• Adobe InDesign or another IDML application experienced a flawed installation
• Your IDML file is corrupted (issues with your Adobe InDesign Markup Language File file itself)
• Your IDML is infected with malware
• Drivers associated with IDML software need to be updated
• Too many applications are open on your PC to load your Adobe InDesign Markup Language File file successfully