There are 5 other file types using
the IDX file extension!

idx file icon.idx - Microsoft Outlook Express mailbox index file

idx file icon.idx - Easy Timesheets file

idx file icon.idx - Sunnysoft InterWrite file

idx file icon.idx - NoX game file

idx file icon.idx - Hellgate: London game archive file

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IDX file extension - Index file

What is idx file? How to open idx files?

File type specification:

Database file type icon Database file type

The idx file extension is commonly used for index files. Index files usually contain one header record and one or many node records. The header record contains information about the root node, the current file size, the length of the key, index options and signature, and printable ASCII representations of the key1 and FOR expressions. The header record starts at file position zero.

These files are usually generated by programs to speed up the searching through large number of files. In most cases if you delete this file, it will be recreated the next time the index process is started again.

The idx files can be generated by many different programs. While the file format is not interchangeable, these file serve generally the same purpose and are usually generated to quicken file or database search.

The default software associated to idx file type:

Visual FoxPro icon

Microsoft Corporation logo Visual FoxPro  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Visual FoxPro is set of tools that is used to create database applications, desktop applications and web applications. Visual FoxPro uses own proprietary data centric object oriented and procedural programming language. Visual FoxPro is available for Microsoft Windows.

Help how to open IDX files:

Most of index files are not meant to be opened directly and only serve for indexing purposes.

How to convert file with extension IDX:

There is no way how to convert *.idx index files to other file formats.

List of software applications associated to the .idx file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open idx file, edit idx file, convert idx file, view idx file, play idx file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the idx files.

  • Create idx file
  • Others idx file

Programs that can create idx file - Index file

Click on the link to get more information about listed programs for create idx file action.

Microsoft Windows:

Apple macOS / Mac OS X:


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