Chuck,
It's true that .sas7bdat files have different encoding representations depending on the platform architecture.
However, SAS on any platform can read a .sas7bdat file from any other platform, using a feature known as Cross-Environment Data Access (CEDA).
When using CEDA, there are a few limitations perhaps on performance and ability to update the file in place. However, you can at least read the contents of the data and create a "native" copy with DATA step or PROC SQL, for example.
More info at:
http://support.sas.com/documentation/cdl/en/lrcon/59522/HTML/default/a002118677.htm
Chris
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