Thanks to the OOXML format, we can now get all these new wonderful extensibilities. Check the Excel Blog for a post on how this can be achieved.
This download will install a set of components that can be used by non-Microsoft Office applications to read data from 2007 Office system files such as Microsoft Office Access 2007 (mdb and accdb) files and Microsoft Office Excel 2007 (xls, xlsx, and xlsb) files. Connectivity to Microsoft Windows SharePoint...