how to install .CAB file

[Guest edvin10]

hi there

i am new to this site. I have o2 xda mini s and trying to install PPCProfiles on the sevice. i don't have windows based machine at home so i am trying to install with cam file which i downloaded onto the phone but when i try to run it it does not let me . it comes up with error message "there is no application associated with file.run the application first then openthis file within the application"

It would be great if somebody could help thanks

ed :)