A daily updated filename extension database!

MKEY file extension

The table below provides useful information about the .mkey file extension. It answers questions such as:

  • What is the .mkey file?
  • What program do I need to open a .mkey file?
  • How can the .mkey file be opened, edited or printed?
  • How can I convert .mkey files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ CompeGPS Land Registration Key Data

MKEY file is a CompeGPS Land Registration Key Data. CompeGPS Land is a map management application that lets you open and edit various kinds of maps and represents a great help when you need to plan a trip.
MKEY format description not yet available
Category: Other files
Application: CompeGPS Land
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
MKEY aliases:
MKEY related links:
MKEY related extensions:
CompeGPS Land Remote Map Data

CompeGPS Land Google Earth Remote Map Data

Other types of files may also use the .mkey file extension.

🚫 The .mkey file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

key, mke, mky, nkey

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Windows SDK Makefile
General Key Data
ArcInfo Geocoding ODB Matching Keys Data
Bioware Game Data Key
Concordance Database Key Fields Data
iWork Keynote Presentation
Tinker Keyword Parameters
MagicKey Configuration Data
SmartWare Database Key File
Novicorp WinToFlash License Key

🔴 Can't open a .mkey file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .mkey file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .mkey file extension, write to us!

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