reguarding halo sheet music - full orchestra

i have a question

on the sheet music section, there is the halo theme for a full orchestra, and i tried to download it, but it wouldn't let me.
i have neither of the programs that it was made on.

i was just wondering whether there was a way i could download it without any of those programs.

i tried unzipping it to adobe, but that wouldn't work either.

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