Only index. html and feed. json would be required. Any other paths in the archive would be determined by the contents of the HTML. Manton Reece bar (Blog Archive Format) #51 - WordPress data-liberation
The Blog Archive Format (.bar) is an open standard introduced by Manton Reece in 2017 to improve blog data portability by creating ZIP files that contain posts, images, and JSON metadata. This format allows for seamless exporting and importing of complete blog content, as supported by platforms like Micro.blog, distinct from generating visual archive pages. Read more on the format at manton.org . Blog archive format - Manton Reece Archivezip