Siag Office is a tightly integrated, free office package.

egon:	 Egon Animator, presentation generator, similar to MS PowerPoint
gvu:	 Postscript previewer
pw:	 Pathetic Writer, text processor, similar to MS Word (well... :-)
siag:	 Scheme In A Grid, spreadsheet, similar to MS Excel
tsiag:	 Curses-based version of siag
xedplus: Lightweight text editor which can easily be configured away
xfiler:	 File manager