>> UM3 file

UM3 file format description

Many people share .um3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .um3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .um3 files.

1 filename extension(s) found in our database.

.um3 - eXtendable Wad Editor UM3 Data

The UM3 data files are related to eXtendable Wad Editor. UM3 file is an eXtendable Wad Editor UM3 Data. XWE (eXtendable Wad Editor) is a lump editor capable of managing the lumps of Doom WAD files.

eXtendable Wad Editor
Data files
- / -
eXtendable Wad Editor UM3 Data related extensions:
SmartOS Compressed Loopback Image
Motorola Media Finder Data
eXtendable Wad Editor TYDSP Data
Adobe Audition Fast Fourier Transform Data
cFosSpeed Registration Key Data
AD Summation iBlaze Database

Naturally, other applications may also use the .um3 file extension. Even harmful programs can create .um3 files. Be especially cautious with .um3 files coming from an unknown source!

Can't open a .um3 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 can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .um3 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, m3, mu3, um, umr, un3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Modula-3 Source Code
Myriad Packed Musical Score
The Land of UM Data
Help and Manual 3 Project
MyEclipse UML Model Repository Data
BlastMetriX 3D Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .um3 file format, then write to us!