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....SpreadsheetML file XLSM Represents XML-based XLSM file XLTX Represents...spreadsheet file (so XLS, XLSX, XLSM, XLSB, ODS and so on) with any...