The TomTom Navigator GPS software uses ITN extension files as travel itinerary to save travel routes and POIs as an ASCII text file.
The interesting thing about this application is that it marks the locations as a waypoint or destination points and marks them as visited or not visited.
An important aspect are the fields contained in the ITN extension files, which basically consist of the coordinates of the point, latitude and longitude, in WGS84 format.
As expected, these files can also be transferred to and from a TomTom GPS device via the USB cable.
To open ITN files, you must have one of the following software
installed on your system:
If you downloaded a ITN file on Android device you can open it by following steps below:
To open ITN File on iOS device follow steps below:
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For more general information about how to open ITN files, file extension itn and registry you can read one of the following articles: