(Written by Vladimir Horvat - updated on October 20, 2021)
Layer summary is contained in an ASCII file and includes selected information from the current layer file. It lists the layers in the upstream order and for each layer it specifies the layer material and its thickness in the preferred units (i.e., those used when the file was created). Using keywords ROT and FIX, respectively, it also specifies whether or not the given layer is attached to the target and rotates with it.