GLS_BINARY_LSB_FIRST what does that mean?
 

I printed-to-file at a public computer (Windoze 7, Firefox), allegedly to a PDF format. No PDF program I have can deal with it. 'file' returns What does that mean?

that is specified here: https://github.com/file/file/blob/ma...gic/Magdir/sgi

It's 'trusted irix info' of an SGI executable?

My read is that it is an OpenGL stream codec file, binary in form, and little endian.

What did you find with your searching?

Did you select the print to file check box in the printer dialog box when you printed whatever you were trying to print?

If so then the file is the actual printer language of the selected printer. If you selected a PDF printer like Microsoft print to PDF or other PDF printer then I would guess something could be wrong with the printer driver on that particular computer.