All data for a session is stored in a "Patient folder" ending with .cx3:

.cx3
 |- Images         - Images and polydata
 |- Logs           - Log files and position data
 |- Screenshots    - Screenshots (still and video)
 |- US_Acq (*)     - 3D ultrasound acquisition data

Export file types

Some data are created by CustusX or imported through plugins, while others are imported directly (Import Overview)

Datatype	Saved/exported as file
Images/volumes	.mhd
Surface models/polydata	.vtk
Tracking positions	.snwpos
Grabbed ultrasound/video streams (*)	.mhd
Digital 2D/3D ultrasound streams (*)	.mhd
Metrics	Can be exported as .txt
Screenshots	.png
Video screeshots (uses VLC)	.mp4

(*) For file format of 3D ultrasound acquisitions, see US Acquisition Data File Format