| aeh | Archos Reader Ebook |
| apnx | Amazon Kindle eBook Index |
| ascm | Adobe Content Server Message |
| az3 | Amazon Kindle Format 8 Ebook |
| az3 | Amazon Kindle Format 8 Ebook Metadata |
| azn | Amazon Kindle Newspaper Data |
| azw | Amazon Kindle eBook |
| azw1 | Amazon Kindle Topaz eBook |
| azw3 | Amazon Kindle Format 8 Ebook |
| azw3f | Amazon Kindle Ebook Metadata |
| azw3r | Amazon Kindle Format 8 Ebook Metadata |
| azw4 | Amazon Print Replica eBook |
| azw6 | Amazon Kindle Ebook |
| bkc | IBM Library Server Bookcase File |
| bki | IBM Library Server Bookshelf Index File |
| bkk | BookBuddi eBook |
| bks | IBM Library Server Bookshelf File |
| booktemplate | Apple iBooks Author Ebook Template |
| bpnueb | PNU eBook |
| bte | E-Tabs Format E-book |
| caj | China Academic Journals Document |
| cb7 | 7-ZIP Compressed Comic Book |
| cba | ACE Compressed Comic Book |
| cbc | Comic Book Collection |
| cbds | Comic Book DS Document |
| cbr | RAR Compressed Comic Book |
| cbt | TAR Compressed Comic Book |
| cbz | ZIP Compressed Comic Book |
| ceb | Apabi eBook |
| cebx | Apabi eBook |
| dnl | DNAML E-book |
| ea | Amazon Kindle End Announcement |
| ebk | eBook Pro eBook |
| ebk | Embiid Reader eBook |
| ebktml | eBook Pro Encoded Temporary Data |