Sharepoint shared services error 'You do not have permission'

I have sharepoint service for excel enabled on my computer, also i am logged in as an Administrator and published Excel to sharepoint sites that i enabled with excel services. When i try to open excel in a web browser, it gives me an error : "Access denied. You do not have permission to perform this action or access this resource". Can anyone help me sort this problem!?

[Sam.D]

You need to go to the shared services admin page from central admin page. Then go to the trusted location where excel files are to be saved and configure a loction for yourself where the excel files would be allowed to render. You can add your whole portal site in this location and allow excel web rendering functionality on the entire site, but you need to set locations where to allow excel rendering while real implementation... Hope this helps!

[JonathanD]

Try this :

• Add your location in Trusted file location
• Choose Location Type : WSS
• Select Trust Children : Allow Children
• Select Workbook Calculation Mode : File
• Then select Allow External Data : Trusted data connection libraries and embedded
• Also select : Allow user defined function

Thanks to you guys! Along with your help i did some more changes unknowningly and i don't remember what changes i did, but all it matters is i've eliminated the error successfully.. Thanks again!