GroupDocs.Assembly for .NET is a document automation and reports generation API designed to create custom documents from templates. This .NET reporting API intelligently assembles the given data with the defined template document and it is a report generator which generates an output document based on the data source, in the template’s format as or in the specified output format. Since GroupDocs.Assembly for .NET can generate documents based on a data source, essentially it serves two purposes: Document Automation and Report Generation....OTT) Spreadsheet (XLS, XLSX, XLSM, XLTX, XLTM, XLSB, SpreadsheetML...Supported Spreadsheet (XLS, XLSX, XLSM, XLTX, XLTM, XLSB, SpreadsheetML...