.FB3

📌 .FB3 (FictionBook) is an enhanced branch of formerly designed .FB2 container, perfectly adapted to extended prerequisites for book text formatting and layout. .FB3 remains in free accessibility and open source code foundation.

In contemporary tech specification the book file serves as a ZIP-archive, where open metadata, text and images are packaged in the shape of discrete, individual compressed resources. Another sustainable and innovative .FB3 feature is the appearance of marked-up and enumerated lists. In addition, the users of the actual extension achieve a solution to handle technical literature with complex structure.

How to open an .FB3 file?

📌 The container has not gained wide popularity. Thus, there are only a few reader apps, which can handle and open these document types. The suggested software is available to download and install from relevant official web-pages.