>> SMMX file

SMMX file format description

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

1 filename extension(s) found in our database.

.smmx - SimpleMind Mind Map Data

The SMMX data files are related to SimpleMind. SMMX file is a SimpleMind Mind Map Data. SimpleMind is a Mind Mapper software with focus on simplicity and ease of use.

Data files
- / -
SimpleMind Mind Map Data related extensions:
SimpleMind Mind Map Style Data

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

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

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

emmx, mmx, msmx, smlx, smm, smx

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Edraw MindMaster XML Project
Command and Conquer Map
SysMetrix Skin
Oracle Forms Menu Module Executable
Steel Markup Language Document

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 .smmx file format, then write to us!

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