.xml - XML document
.000 - Linux, FreeBSD file
.ctt - Windows Live Messenger Contact List
.metadata_never_index - MAC OS X metadata settings file
.uccapilog - Windows Live Messenger file
.pst - Microsoft Office Outlook personal folder file
.jad - Java application descriptor file
.part - Mozilla Firefox partial download file
file extension MM4 - Microsoft Windows word processing format
.MM4File extension MM4 description:
Probably used in older versions of Microsoft Windows.
Associated applications to file extension MM4:
Company / developer:
Microsoft Corporation
Microsoft Windows
Microsoft Windows is a family of operating systems by Microsoft. They can run on several types of platforms such as servers, embedded devices and, most typically, on personal computers. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing trend of graphical user interfaces (GUI) popularized by the Macintosh. Microsoft Windows eventually came to dominate the world's personal computer market.