What to do When MDX Files Won’t Open

Why won’t your MDX file open? You’ve tried double-clicking it, but it doesn’t come up, or you see an error message. So what do you do? This is a common issue with various file extensions because many extensions can be opened by multiple programs, and many programs can open a variety of extensions. It sounds confusing, but it's a lot easier to understand than you might think!

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Which program should you use?

Your computer may be trying to use the wrong program to open the MDX file, or it may not have a program installed that can open the file. There are a few different programs you can use to open MDX files, including Label Pro Re-Index, MDict Dictionary File, and MidiEx MIDI System Exclusive Dump software. Try downloading one or more of these from the manufacturer’s website to open your MDX file.

What type of file is it?

The file type is the key to opening MDX files. MDX files are usually considered Disk Image Files. You may already have a program on your computer that can open this type of file.

If the file type is unknown, you can find it in the file properties by following the steps below.

Computer Files
Windows:
  1. Right-click the file and click “Properties”.
  2. Look under “Type of File” for the file type.
Mac:
  1. Right-click the file and click “Properties".
  2. Look under “Kind” for the file type.

Who developed the software?

If you can’t find the right program to open your MDX file, a software developer might be able to help you. Contact the developer of one of the most common programs for MDX files from the list below.

Software Developer
Label Pro Re-Index is developed by Avery
MDict Dictionary File is developed by Octopus Studio
MidiEx MIDI System Exclusive Dump is developed by Windows Software
dBASE IV Multiple Index is developed by Windows Programmer
Rational XDE Model is developed by IBM
Borland Database Engine Index is developed by Borland Software Corporation

Why not try a universal file viewer?

A universal file viewer is a program that can open files with a wide range of extensions, depending on the file format. When you have MDX files you can’t open, a universal file viewer like File Magic (Download) can open it for you. Just remember that some files aren’t compatible with this type of program, and they will only open in binary format.


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1File types that are unsupported can be opened in binary format.

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