Not when you could install Linux for free which would come with OpenOffice. It wouldn't be setting any speed records to be sure, but it's free and if it ever got connected to the Internet, a lot safer.
Just pick any of the major distributions, download a copy, and burn it to CD/DVD. For such limited use, Madriva, Fedora Core and SuSE may as well be the same.
I have recently picked up an old Gateway 2000 machine with a 233 mHz processor and 192 mHz of RAM. The hard drive is wiped clean - no operating system on board. Grand children need a PC with access to a word processor for homework papers. Is this machine worth the expense of adding an old, e.g. Win95 or Win98 operating system just for this purpose?