Aspose.Cells for .NET can save files to different formats. Save Files to PDF. Save Files to HTML. Save Files to DOCX. Save Files to PPTX. Save Files to JSON. Save Files to MHTML....XLTM file Xlsb Represents an Excel 2007 binary XLSB file SpreadsheetML...spreadsheet file (so XLS, XLSX, XLSM, XLSB, ODS and so on) with any number...