Just for curiosity,
I have a DOCM file that I removed a dozen unnecessary text boxes in a userform and one or two subs etc., but the file sizes change so little or not at all.
Even when I just open the file and save the sizes grew (only once) with no modification at all from 283kb to +- 300kb.
Exactly at this moment I deleted 3 lines of the code and the size increased from 306kb to 309kb.
Thanks