rosbag_extract_traj.exe takes in input
.bag , .db3 , .mcap )To extract the GNSS recorded in the sample dataset, execute the following commands
rosbag_extract_traj --bag <path/to/sample/bag> --std-max 0.05
An console log tells you that a ./fix.ply was written where you are:

--std-max |
Maximum accepted standard error in the GNSS measurements. |
|---|