There are only two ways to tell somebody thanks: Kudos and Marked Solutions Unofficial Forum Rules and Guidelines "Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5
What I really was after was the DAQmx VI help. That gets installed when DAQmx is installed. I have the VIs (copied from a Windows instrallation). They do not work of course because the core .dll is missing. But that process does not get the help files.
I did search and found that there are programs available on the Mac which can process .chm files. I installed two and then downloaded the file you linked. That has the LV help. After some searching in the NI documents pages I found the DAQmx help and the DAQmx VIs help .chm files. Some links tend not to work, but this has given me access to the stuff I wanted.
For any other crazy Mac users who want to read help files on VIs you cannot run, I have tried CHM Reader, available through the Apple App Store, and iChm, which I found at https://www.macupdate.com/app/mac/28171/ichm . CHM Reader seems to be a bit more robust with the NI files.
