This is a fixed format ascii file produced from Trimble Field Level11 system.
The first line gives us the lat/lon coordinates of the masterbench. Every other line contains the relative coordinates from the master bench with a height and code. All the relative coordinates are local coordinates.
0001 0.00 0 0.000 209.841 MB S27:46:13.864 / E148:44:35.222 0.000
2 -231.47 -22.66 209.962758 B
3 - 33.10 -19.02 209.926330 B
4 -234.43 -16.10 209.924336 B
5 -235.68 -13.25 209.939891 B
6 -236.99 -10.31 209.946791 B
7 -238.29 -7.41 209.951791 B
8 -239.67 -4.33 209.975220 B
9 -241.01 -1.34 209.987458 B
10 -242.32 1.60 209.996291 B
Simply select the appropriate multiplane.txt file and press OK or double click and the data is imported.