The EPUB format is used for electronic publications, which are commonly known as ebooks. The EPUB files are supported by a range of smart devices such as smartphones, tablets, laptops, etc. In various cases, the documents are created in MS Word formats that do not often have built-in support on smart devices. Therefore, Word files are converted to EPUB format. In this article, you will learn how to convert Word (DOCX, DOC, etc.) files to EPUB programmatically using C#.