There are 4 other file types using
the GMF file extension!
.gmf - GenStat data
.gmf - Robot Arena Design and Destroy graphic data
.gmf - Geology multi-data
.gmf - GameMaker data file
What is gmf file? How to open gmf files?
The GMF file extension is associated with the SmartWare. File contains graph metadata.
The default software associated to open gmf file:
SmartWare 
Company or developer:
SmartWare Corporation
SmartWare is programming platform that uses Faircom database engine. Also contains word processor, spreadsheet, and communication modules.
Help how to open:
Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.
For general information try to look at:
Identifying unknown file formats
How to convert:
Due the variability and uncertainty of this file type group, there is no general information available, about how to convert this various data file format. However most files with extension from this group are usually not in formats, which can be converted. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.
List of recommended software applications associated to the .gmf 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 gmf file, edit gmf file, convert gmf file, view gmf file, play gmf file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with gmf file - SmartWare graph metafile
Click on the software link for more information about SmartWare. SmartWare uses gmf 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.).
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