Files with mso file extension might also be found as ActiveMime objects, some sort of spin-off of ActiveX content.
There are 3 other file types using
the MSO file extension!
.mso - Microsoft Organization Chart chart data
.mso - MedlySound module
.mso - OLE web page storage stream
Software that open mso file
MSO file extension - ActiveMime object
What is mso file? How to open mso files?
File type specification:
The mso file extension was also reported to be used for ActiveMime objects, some sort of 'spin-off' of ActiveX content.
ActiveMime is simply zlib-compressed data starting at offset 0x32, then a standard OLE file with the VBA macro project.
The default software associated to open mso file:
Company or developer:
Microsoft Corporation
A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS. MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Microsoft Windows 11.
List of recommended software applications associated to the .mso file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mso file, edit mso file, convert mso file, view mso file, play mso file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with mso file - ActiveMime object
Click on the software link for more information about Microsoft Windows. Microsoft Windows uses mso file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
