The *.hmsd file extension is related with Microsoft grammar tools.
Software that open hmsd file
HMSD file extension - Microsoft dictionary file
What is hmsd file? How to open hmsd files?
File type specification:
The HMSD file extension is probably associated with the Microsoft Office and other software developed by Microsoft. The *.hmsd file stores various data used for control spelling and grammar in texts, spreadsheets, presentations etc.
List of recommended software applications associated to the .hmsd 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 hmsd file, edit hmsd file, convert hmsd file, view hmsd file, play hmsd file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with hmsd file - Microsoft dictionary file
Click on the software link for more information about Microsoft Office. Microsoft Office uses hmsd 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.).