ZK Spreadsheet is an open source embeddable web-based online spreadsheet that delivers the rich functionality of Excel within browsers using pure Java. (Moved to http://code.google.com/p/zkspreadsheet/ since ZK Spreadsheet 2.0)
Small, fast Java library for reading and writing CSV files
Java CSV is a small fast open source Java library for reading and writing CSV and plain delimited text files. All kinds of CSV files can be handled, text qualified, Excel formatted, etc.
We have develop data mining 'Plug and Play' WYSIWYG Tool on commercial ERP Baan IVc4 which uses Baan 4 GL as extract and transform engine and MS excel as load client . For more information about the tool and the company , please visit www.erpjewels.com