Can you elaborate on what you are trying to do with this report?  What are you looking to report on?

As I currently understand it...

In your context browser there is an Fx tab. It has all the text functions. It should also have one for excel. I can't use it since you have to have excel services running on something (SharePoint) to use it.

Let me know if you need more explanation and we can chat.

All K2-specific reports that run in SQL Server Reporting Services can be exported to Excel, and there are options in SQL Reporting Services to make Excel the default view option for reports if you massage the URL to the report viewer... not sure if that is what you were looking for exactly