Judging by your screenshot, the only export format that should not show is the XPS. If you have verified that there is no Telerik.Reporting.XpsRendering.dll assembly in the bin folder of your application, make sure this assembly is not added to the GAC of your server. If so, please remove it as it is not necessary to add reporting assemblies to GAC. Your other option would be to explicitly hide it:
I've attached a sample project that works as expected. Compare both and make the necessary changes.
the Telerik team
BLOGGERS WANTED! Write a review about Telerik Reporting or the new Report Designer, post it on your blog and get a complimentary license for Telerik Reporting. We’ll even promote your blog and help bring you a few fresh readers. Yes, it’s that simple. And it’s free. Get started today >