PS.Z files on xsrc?

[Noriyuki Soda <soda%sra.co.jp@localhost>]

> Removed Files:
>       xsrc/xc/doc/hardcopy/BDF: bdf.PS.Z
>       xsrc/xc/doc/hardcopy/CTEXT: ctext.PS.Z
                :
>       xsrc/xc/doc/hardcopy/XIE/XIEProto: apa_xie.PS.Z apb_xie.PS.Z
>           apc_xie.PS.Z ch1_xie.PS.Z ch2_xie.PS.Z ch3_xie.PS.Z ch4_xie.PS.Z
>           ch5_xie.PS.Z ch6_xie.PS.Z ch7_xie.PS.Z ch8_xie.PS.Z ch9_xie.PS.Z
>           cmatch.PS.Z frnt_xie.PS.Z overview.PS.Z
                :
>       xsrc/xc/doc/hardcopy/XPRINT: xp_library.PS.Z xp_proto.PS.Z

Mm, some of these files are created by Microsoft Word (e.g. XIEProto) 
or FrameMaker (e.g. XPRINT).
Don't these files are handy for users who don't have Microsoft Word
(like me) or who don't have platform which can run Linux FrameMaker?
--
soda