@VirtualPad, @Dorsai6
Many thanks for your constructive comments.
Actually, I did do as you suggest. I used VBA to count *.demp, *_it*.demo, *.vghd, *_it*.vghd in the Models card directory and derived the clip count by adding *.demo count to *.vghd count then subracting the counts of the transition files.
However, this only works for cards actually in my collection. I was hoping that between the .xml file and models.lst file I might get the clip count for cards not in my collection. It seems that the web site is the only source for that.
The models.lst file is no help. It merely counts all the .vghd files - no distinction that I can see for the transition files. It is pretty much the same for the card.xml file.
Incidently, the web site clip count is not correct. It counts preview files and these are deleted a day or so after a card is downloaded. So the website says Katya Clover, e0221, is 20 clips. It is - for a short time. Then it reverts to 17 clips. I have asked Totem to comment on this the the Bugs & Fixes Section. It may be a feature, not a bug.
Yesterday I caught the software trying to play a (preview) clip that it had deleted!