It is a free and open standard published by the International Digital Publishing Forum (IDPF).
epub that can be downloaded and read on devices like smartphones, tablets, computers, or e-readers. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc.ĮPUB is an e-book file format with the extension.
The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents.