[anthk]

By 1999/2001 I think you already had Star office.

And KDE1 for sure. But these were the very last years of the SGI machines.

[rbanffy]

Maybe, but I don’t remember IRIX binaries.

[anthk]

By 2001 it was this, but it was very late for Irix:

https://www.openoffice.org/porting/irix/