"technicaly" you can not find a "viewer/player" for such specific files (for example like max, maya, blend...) for many reasons.
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The most likely you can do (and the simplest) is of course to beg to someone that have the soft or download it yourself and then export the file in a universal mesh or directly (if available thought plug) to the desire format.
In most cases...of course, u'll lost any specific option relative to the original one.
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hope that help.