One can open them with either a text editor or a spreadsheet program. In case the first row contains a “#” the rest is a remark. The second row contains the cross section name as used in Karamba3D, the third the alias, the fourth a user defined name or nothing. Currently the name conversion tables which come with Karamba3D do cover many but not all cross section names. In case there is no alias for a cross section name it gets exported as a non-standard cross section.