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MM3 file extension

The table below provides useful information about the .mm3 file extension. It answers questions such as:

  • What is the .mm3 file?
  • What program do I need to open a .mm3 file?
  • How can the .mm3 file be opened, edited or printed?
  • How can I convert .mm3 files to another format?

Table of Contents

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

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

✅ Mortgage Minder v3 Data File

MM3 file is a Mortgage Minder v3 Data File. Mortgage Minder is a mortgage acceleration calculator for Microsoft Windows.
MM3 format description not yet available
Category: Data files
Application: Mortgage Minder
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
MM3 aliases:
MM3 related links:
MM3 related extensions:

Other types of files may also use the .mm3 file extension.

🚫 The .mm3 file extension is often given incorrectly!

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

hm3, jm3, km3, lm3, m3, ml3, mm, mme, mmr, mmw, mn3, nm3

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Navitel v5 Map
MIME Encoded Data
Help and Manual 3 Project
Sybase PowerDesigner Multimodel Report
MultiLedger Chart of Accounts Data
BlastMetriX 3D Data
Juki AMS Embroidery Data
Inertial Explorer Mounting Data
Matrix Market File
Kernel MetaMetaModel File

🔴 Can't open a .mm3 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 .mm3 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 .mm3 file extension, write to us!

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