what software do you need to open all those funky ms formats

The mac does not require extensions to filenames.
When trying to open a Microsoft file with some weird
extension on it I always get a message about needing
a program or something to open the file -this happens
most frequently when trying to read or view mail from
my PC friends.
There must be some software that will look at the extension
and translate it for me. Right?
Thanks for your time.

P.S. I am looking at the new Imac as a replacement for
this relic I am using.

  • Asked about:  Mac OS X 10.6 Snow Leopard

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