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FileZigZag is a free online file converter that supports a wide range of file formats, including documents, images, archives, ebooks, audio, and video. It allows users to convert files online without the need to install any software or register for an account. With its robust conversion engine, File

For avid readers and librarians, Calibre is a one-stop solution for managing e-book collections. It is a free and open-source e-book management software that supports a wide range of formats, including CBZ, CBR, CBC, CHM, EPUB, FB2, HTML, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, TCR, and TX