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

File Extension

MDX File Format

Multiple index file (dBase IV)

MDX is a data file format used by dBASE IV. MDX files are multiple index files which are used to hold database information. Many .MDX files are created along side a .DBF file. MDX files can be opened by dBASE and Borland InterBase programs.

MIME: application/dbase, application/x-dbase

Learn more about .MDX files:

Visit the dBase web page.

Search for .MDX-related questions on IT Knowledge Exchange.

This was last updated in August 2010
Editorial Director Margaret Rouse

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