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Details of extension .tm3

On this page, we're going to take a closer look at the .tm3 file extension, which is related to TreeMap Document. We'll explain what exactly a .tm3 fileformat is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .tm3 files into different formats, we'll give you some tips on how to do that too. Let's see the file format associated with this file extension!

Contents

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tm3 file - TreeMap Document

TreeMap Document

The TM3 file is a TreeMap Document. Treemap is a space-constrained visualization of hierarchical structures. It is very effective in showing attributes of leaf nodes using size and color coding. Treemap uses a very simple TAB-delimited format that includes both the attributes values and the tree structure.
Category: Document files
Application: TreeMap
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Aliases:
-
Related extensions:
.qaf Qedoc Autolaunch File
.n3 Notation3 Document
.lgf Imagine LogoMotion Image
.obm EIAS Camera Motion Export
Links:
-

The .tm3 file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .tm3 extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .tm3 file extension wrong?

In our database, we came across the following similar extensions:

.fm3 FCEUX 3 Movie Capture
.tn3 Atari Tiny Image
.tm Landsat Thematic Mapper Data
.t3m Swift 3D Material Data
.tmr Apimac Timer Document
.tme Bryce Time Data

The .tm3 extension is frequently misused

People sometimes confuse the .tm3 filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

fm3 (1), tm (1), t3m (1), tmr (1), tme (1), m3 (1), gm3 (1), tk3 (1), rm3 (1), t3 (1)

Having trouble opening a .tm3 file?

If you want to open a .tm3 file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .tm3 association can trigger this error.

Windows can't open this file:

File: example.tm3

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android

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