Updating htm files
Apologies in advance if i have posted this in the wrong place - i hope not - but this is my first foray here.
The question i have is this. I have created my ebooks by importing htm files into calibre. I have then gone all through the associated tweaks and so forth to get it how i want it. So far so good. My problem is this - when i update the source htm file, how do i go about importing that changed file into my library without deleting the existing ebook and starting again. I guess i'm missing something obvious - but it's so obvious i can't work it out.
Thanks in advance