This format can...
read and write tracks
This format is derived from the xcsv format, so it has all of the same options as that format.
The csv log file can be extracted from the GPS receiver using the BT747 software available from http://www.bt747.org
Time that the point was recorded, 24-hr format H:MM:SS. Unsure how fractions of a second are handled.
Degrees east of the Prime Meridian (use negative for east of the Prime Meridian/Greenwich)
Example 3.X. Example 'iBlue 757' file
3308,T,2011/05/14,4:15:11,DGPS,-33.803645,S,150.880499,E,99.859 m,0.207 km/h, 0.28 m
3309,T,2011/05/14,4:15:12,DGPS,-33.803645,S,150.880499,E,100.137 m,0.362 km/h, 0.28 m
3310,T,2011/05/14,4:15:13,DGPS,-33.803644,S,150.8805,E,100.416 m,0.302 km/h, 0.30 m