I am wondering what is the format of theses files: gvw


It is meant to store somehow the weather data but I can't figure out what is the format of this file and how to read it.

It seems related to Garmin but I can't find any specs about that.

Is there anything to convert it to a more comon file format ?

1 Answer 1


According to DataTypes.net:

GVW file is a GeoVisu Waypoint Data. GeoVisu is a program that displays georeferenced data (images, graphics) and downloads data recorded by some GPS devices. GeoVisu has a Moving map navigation function, which can be used with any NMEA 0183 compatible or Garmin USB GPS device.

The GeoVisu page has this to say:

GeoVisu uses its own data format to store data downloaded from Garmin et Navilink GPS receivers. These are ASCII files. They can be easily altered. See format in Appendix C. Coordinate system is WGS84.

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