title_body: Importing XHTML Files into InDesign
upvoted_answer: After doing some more research, it appears that X/HTML files can NOT be imported into InDesign. The best you can do is use InDesign to create a framework for your epub, export it as an epub, then use BBEdit to open and modify the HTML files that make up your epub. If you have to copy an entire HTML file into your epub (or delete a file), then you can use eCanCrusher to crack open your epub, giving you full access to everything inside.