C# .NET document parsing API to extract text, images, metadata & encoding from databases, PDF, Word, Excel, presentations, web, email, EPUB & zip file formats....XLS, XLSX, XLSM, XLSB, XLT, XLTX, XLTM, XLA, XLAM Presentations...MD OTS DOTM ZIP TIFF PNG OTP XLTX DOTX XHTML ODT PST DOCM OST...