Notes about the MRF file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The MRF file type is primarily associated with 'GPS Pathfinder Office' by Trinble Navigation Limited. The GPS Pathfinder Office software enables you to pre-plan field sessions. The data dictionary editor creates custom pick-lists, automatic repeat feature, and numeric values. In the field, the data dictionary prompts the field crew to enter specific information for data integrity and compatibility with your GIS or database. A geoid model is a mathematical definition of the difference between WGS-84 Height and local height above mean sea level (MSL). It defines the mean sea level over a local area. A geoid grid model is a file that contains these differences for a number of positions on a grid.