I converted my file to UTF-16 Little-Endian, as suggested, and was able to import successfully. For anyone else who needs this work-around, I used TextWrangler (free app from
Bare Bones Software) to do the encoding change.
Here's another work-around: Get OpenOffice which is great, free, available for Mac, etc. Import your file. Save as Excel format. Bob's your uncle.
More details: The TextWrangler option also worked for me. What did NOT work was using the command line "iconv" tool. It converted the file just fine, but did not create the BOM (byte order mark), which, apparently, excel on the mac must have. There is apparently
no way to get iconv to create the BOM.