CSV not exporting correctly for joints

[9and3]

Premise: I have not tested it for assemblies but..
For single beams the joints sare not exporting correctly the joints, meaning that each row is just a stringed list of python, see below:

In general, I believe we are missing:

• title for columns (we do not know which values corresponds to what: e.g. rmse, dist, etc)
• information on the unit of the measurements
• an initial legend row to indicate some metadata and ids of the beam/assembly (number of joints and their ids, number of beams etc) or simply a first cell per row that indicates to which element of the assembly corresponds the values.