Files with MDI extension might also be found as multiple document interface files from Borland programs.

There are 2 other file types using
the MDI file extension!

mdi icon.mdi - Microsoft Office Document Imaging file format [common]

empty icon.mdi - MIDI sound file

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MDI file extension - Borland multiple document interface

What is mdi file? How to open mdi files?

File type specification:

Various data file type icon Various data file type

The MDI file extension is also related to a multiple document interface file type used by Borland application. No further information could be found about the use of this file format. Might be old and no longer used.

Help how to open MDI files:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert file with extension MDI:

As far as we know, this .mdi file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

Borland website

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