> For the complete documentation index, see [llms.txt](https://docs-7.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-7.phoenixlidar.com/lidarmill-desktop/workflow-kk/uploading-files/trajectory.md).

# Importing Trajectories

LiDAR ranging measurements are fused to the trajectory which contains time-stamped information about the rover's position and attitude. To open a trajectory, just use **File->Open File** and navigate to the trajectory.

The user can import a post processed trajectory from either [Novatel's Inertial Explorer](https://docs.phoenixlidar.com/lidarmill-desktop/post-processing/workflow-kk/trajectory-processing/inertial-explorer-trajectory-upload) software or [LiDARMill's Navlab](https://docs.phoenixlidar.com/lidarmill-desktop/post-processing/workflow-kk/trajectory-processing/navlab-trajectory-processing-and-upload)

{% hint style="info" %}
Your realtime trajectory (NAV file) will automatically load into SpatialExplorer upon opening the PLP. 
{% endhint %}