can't open servi type file

[PepeBouchard]

I downloaded the service manual from gofastvideo.com and it is "HAYNES.Suzuki.GSX600F.GSX750F.&.GSX750.98-02.servi" I have never heard of an servi file type. Did the filename get truncated? I tried to open as a pdf and redownload as a pdf, neither worked. I feel like an idiot. any suggestions?
thanks

changed filetype to .rar and was able to work....just gotta read all the posts.