.NET Excel Component - Nasosoft Excel v5.9 is a rich feature Excel control for C#/VB.NET to enable your application to read/write Exccel files. It supports Excel 95-2003 format and Excel 2007 format (.xlsx).
PDF Merger and Splitter is a professional PDF editing tool for merging multiple PDF files into one or splitting PDF file into many within three steps. Supports password protected files. Can add default password for all files or provide one by one.