I don't have a use right now so I saved a URL link and did not try to download any files.
If you have one you like point me to it and I'll try...tho I don't have a way to open .max files....I can open most 3D formats and convert many.
There may be a free converter (maybe, there are several expensive ones)....but I have several 3D programs and sometimes they can open odd files.
.rar (you probably know this but others may not) is a compressed format like a .zip and many .zip opening programs will open a .rar or Mac format such as .sit (once opened, most .sit files work OK on a PC)(use "stuffit" prog to open .sit files)
Also search around the site as there are many pages of stuff besides furniture
EDIT
I did a little searching and found some peoiple use free prog "gmax" or "blender" to open .max files tho not always successful.