I have created a Crystal Viewer using Visual Studio 2003. The reports I am running have been written
using Crystal v10. They run ok. The problem I have is they will not export to Excel. I have checked this out
and it seems to be a bug in Visual Studio 2003 which uses by default CR viewer v9.1.5 and says I should
upgrade to a later version.

Having Crystal Professional v10 loaded on the machine I have tried to load this by going to the Toolbox,
clicking add components and browsing to the Common Files directory where I select the CRViewer .dll.

The problem lies here saying the file is an invalid file. Can anyone tell me where I am going wrong.