What is IDX? What Opens a IDX? File Format List from WhatIs.com

File Extension

IDX File Format

Index file (Microsoft Clip Gallery v. 1.x)

THM file format

IDX is an indexing file used by Microsoft Clip Gallery. This file extension is used to hold and store information from images used in Microsoft Office programs.

MIME: application/x-latex

Learn more about .IDX files:

Search for answers to .IDX-related questions on IT Knowledge Exchange.

This was last updated in July 2010
Editorial Director Margaret Rouse

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