C# .NET document parsing API to extract text, images, metadata & encoding from databases, PDF, Word, Excel, presentations, web, email, EPUB & zip file formats....XLSX, XLSM, XLSB, XLT, XLTX, XLTM, XLA, XLAM Presentations : PPT...OST JPG ODS TXT XLT GIF CSV XLTM XLAM JPEG ODP RTF XLSB TAR XLSM...