There are 6 other file types using
the MDX file extension!

mdx icon.mdx - Media Data eXtended image [common]

mdx icon.mdx - Blizzard Entertainment 3D model file

empty icon.mdx - MDict dictionary data

empty icon.mdx - IBM Rational XDE model file

empty icon.mdx - IBM WORKS for OS/2 file

empty icon.mdx - X68000 midi file

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MDX file extension - Microsoft database index file

What is mdx file? How to open mdx files?

File type specification:

Various data file type icon Various data file type

The MDX file extension is associated with Microsoft SQL Server. File contains database index. Database indexing enables full text indexing of Microsoft® SQL Server and Access databases using ODBC and Active Server Pages (ASP).

MDX extension is also used in other programs for their database indexes. Including Borland, or dBase. These just share the same extension and purpose but are otherwise unrelated to Microsoft's MDX format.

The default software associated to mdx file type:

Microsoft SQL Server icon

Microsoft Corporation logoMicrosoft SQL Server  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft SQL Server is set of relational database applications and tools used to create, organize and manage SQL databases. Microsoft SQL Server primary supports T-SQL and ANSI SQL query languages. SQL Server is distributed in many editions, with different features.

Help how to open MDX files:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

For general information try to look at:
Identifying unknown file formats

How to convert file with extension MDX:


List of software applications associated to the .mdx file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file
: like open mdx file, edit mdx file, convert mdx file, view mdx file, play mdx 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 ableto perform the specified software action, such as opening, editing or converting mdx files.

  • Open mdx file
  • Create mdx file
  • Others mdx file

Software that open mdx file - Microsoft database index file

Click on the link to get more information about Microsoft SQL Server for open mdx file action.

Microsoft Windows:

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