Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoInt, Visio, PDF, CAD & several other categories In Web, Desktop or Mobile apps. Develop & deploy on WIndows, LInux, MacOS & Android platforms....Supported File Formats Contents [ Hide ] Format Description Load...Save XLS Excel 95/5.0 - 2003 Workbook. XLSX The Office Open XML SpreadsheetML...