on RBP, we are fine tuning the 3D printable part. This is one of the work in progress versions - not a final one.
we also consider an easier to print version that does not require support material.
we will make 3d data of finished solutions available this week.
any text editor or spreadsheet opens csv file. CSV stands for Comma Separated Values - its just a formatted text. csv as a format is not specifically made for antenna files.