All you need to do is change the filename extension to .zip
You can then extract the files.
You can edit the files within there.
And rezip - rename to .idml
I did this for a project before and the rezipped and renamed IDML file didn't work.
I found it easier to simply drag the changed files into the already Zipped file - then rename back to IDML and that worked a lot cleaner for me.
Thanks so much, i will give this a try.
Perfect. Works good. I did not realize you could edit a .zip file in windows explorer.
I am working with a 40 page file and it is taking forever to reopen when I rename it back to .idml. Has anyone else seen this?