Apps with 'Multi Format Reader' feature

Sumatra PDF is a slim, free, open-source PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI/FB2 viewer for Windows.Why another PDF reader?

Application for reading books: *.fb2, *.epub, *.mobi, *.azw, *.prc, *.chm, *.fbz, *.rtf, *.txt (all encodings), documents: *.djvu, *.pdf, *.xps, office documents: *.doc, *.docx, *.