CMTP file format description

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

1 filename extension(s) found in our database.

.cmtp - CometCHAR Patch

The CMTP data files are related to CometCHAR. The CMTP file is a CometCHAR Patch. CometCHAR is a front-end and support library for the CMTP file format, which is a file format designed for easy patching of SM64 characters.

Data files
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CometCHAR Patch related extensions:
Entrust Entelligence Profile
TracerX Log File
TI-85 Calculator Matrix Data
Canon Easy-PhotoPrint EX Stickers File
AbiCollab Collaborative File Descriptor Data
Nanoeducator File

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

Can't open a .cmtp 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 .cmtp file extension is often given incorrectly!

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

cmp, cmpt, cmt, ctp, mtp, smtp

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

MadTracker Pattern
SWAT 3 Compressed Audio
CrazyTalk Project
Atari ST Public Painter Image
Chinon ES-1000 Image
JPEG Bitmap Image

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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