GroupDocs.Total for .NET is an all-in-one document automation API suite for .NET developers, providing a comprehensive set of tools for working with various document formats, including PDF, Word, Excel, Image, HTML, Diagram, and more....office formats like Word and Excel to images, code, and encrypted... DOT, DOTX, DOTM, RTF, TXT Excel: XLS, XLSX, XLSM, XLSB, XLTM...