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I am using Elephant 3.2 to process a mono file in WaveLab.  Every time I try to process the file, Elephant (or WaveLab) creates a stereo version.  I just want to process it in mono and keep it in mono.  How would I do this?  I tried to process it with Elephant 2.5, and it handles mono just fine (but of course I want to use the latest version).

I'm unable to comment - it's probably some WaveLab's "quirk".  Elephant 3.2 is capable to process any channel configurations.  Previous Elephant was fixed to mono and stereo operation.