http://www.filehelpers.net
The FileHelpers are an easy to use .NET library written in C#. Is designed to read/write data from flat files with fixed length or delimited records (CSV). Also has support to import/export data from different data storages (Excel, Access, SqlServer)
Code on GitHub: https://github.com/MarcosMeli/FileHelpers
Framework for RAD against relational database. Supports multiple database platforms. Uses generics and partial classes. Includes a winforms Class Generatator for autogenerating O/R mapper classes based on Customisable templates.
Monet Objects is an easy-to-use .NET object-relational mapping library. It allows .NET developers to create applications dealing with persistent objects (relying on a relational database as MySql) without writing a single SQL query.