I need to be able to open Indesign files that are make CS 6 version 9.1. Can I somehow upgrade my CS^ version 8 (MAC) to the newer version so I can open the files?
Yes, you can take a monthly subscription to InDesign CC2014/2015.
Alternatively, the later version can be saved as an IDML file which will enable you to open it In CS6.
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