Hi folks. I apologise in advance if this question has already been answered. I did a quick search but couldn't seem to find a lead.

I have only just discovered http://www.vray-materials.de but am having trouble using most of their files as the download only contains a jpeg of the sampled material and a file which ends in .mat On my computer this extension is recognised as a microsoft access file, which i have not the slightest idea of its purpose. I have yet to come accross a .vismat

Could someone kindly share with me what I need to do in order to utilise the free materials available on this site.
Thank you in advace.

Regards,
sean