I have exported a CSV file from hilite, but what exactly does the numbers mean?!
I have exported a CSV file from hilite, but what exactly does the numbers mean?!

The first two lines describes the basic settings for symmetry.. it's not used in the student version. - please ignore and copy paste.
The next two lines are describing the coordinate system and how to interpret XYZ from this CSV.
The next lines - in this case 7-10 ..depending on how many luminaires you are using - is on one hand the Bill of material ..just in case you want to know how many luminaires you are using/importing and on the other hand it defines unique TypeId.
The TypeId will be used to find this luminaire in the Hilite Library and to use it. Here it is color coded, so that you can see how the TypeId will be used in the position list below.
The list below is a positioning list with many extra cells.
The TypeId must match with the TypieId from above and then you can set the position and orientation or if you are using a spot the position of the targetpoint.