And Wikipedia says :
Alias Systems Corporation (formerly Alias|Wavefront), headquartered in Toronto, Ontario, Canada, was a software company that produced high-end 3D graphics software. The company was formed in 1995 when Silicon Graphics bought Alias Research, which was founded in 1983, and Wavefront Technologies, founded in 1984, then merged the two companies. It is now owned by Autodesk, the producers of AutoCAD and 3ds Max.
Hi sticklebrick - yeah the native Alias wire files are not supported by very many other programs. Usually whoever sent you the file should be aware of this and would have sent you the file in one of the more commonly used formats like STEP or IGES.