An emm file extension is associated with the Expanded memory manager a part of MS-DOS operating system.
EMM file extension - Expanded memory manager data
What is emm file? How to open emm files?
File type specification:
The emm file extension is used by Expanded memory manager (EMM), a device driver that manages and configures expanded memory.
EMMs are only required in MS-DOS, because other operating systems access computer memory in a different way.
This emm file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open emm file:
Company or developer:
Microsoft Corporation
MS-DOS (short for Microsoft Disk Operating System) is an operating system commercialized by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the dominant operating system for computers during the 1980s
List of recommended software applications associated to the .emm 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 emm file, edit emm file, convert emm file, view emm file, play emm file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with emm file - Expanded memory manager data
Click on the software link for more information about MS-DOS. MS-DOS uses emm 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.).