Whenever I D/L any Bryce .mat file, instead of a Bryce icon, I've been getting the Microsoft Office ,mat file which has nothing to do with Bryce at all.  When it's clicked, it goes to the Office program as a MS Access Table file. How can I get this back to being a Bryce file, short of removing that section of Office altogether? I don't think I can just install it in Bryce as is.

I checked and there doesn't seem to be any icon for the Bryce .mat files anymore in the system, so I can't redo the icon to correct it. Does anyone have any ideas?  Has anyone had this problem? Thank you for any help.