The Office Reader is a free app that lets you read and view Word, Excel, PowerPoint, PDF, RTF, HTML, MD, EML, MSG, and eBook documents offline. ✔ Supported file formats - DOC, DOCX (Microsoft Word). - XLS, XLSX (Microsoft Excel). - PPT, PPTX (Microsoft PowerPoint). - PDF (Portable Document Format). - RTF (Rich Text Format). - TXT, TEXT, LOG (Text Format). - CSV (Comma-separated values). - HTML, XHTML (HyperText Markup Language). - MD (MarkDown). - EPUB, MOBI, AZW, AZW3, AZW4 (eBook formats). -