We are currently using actuate e.spreadsheet API to work with Excel files in SWT.(something like spreadsheet management application). It is not officially supported by Actuate any more and we have problems with BIRT licensing, so we have to move to some other products. POI is good only for use on a server(save as..., etc.) but it will not work if we need to display spreadsheet in the viewer. Can you recommend any other products to replace actuate?