Exporting custom made reports in CRM is failing

Exporting custom made reports in CRM is failing

Dear Zoho,

I've made a few custom reports. I would like to wish to export this data to Excel, but when doing so I get an error notification (in Dutch):

"Helaas! U kunt dit rapport niet exporteren, omdat u geen toestemming heeft voor exporteren van een of meer modules die deel uitmaken van dit rapport. Om het rapport te exporteren, gelieve uitvoerrechten op te geven voor deze modules in instellingen voor Profielen."

Translated it means: "Too bad! You can't export this report, because you don't have permission for the exportation of one or more modules which are part of this report. To export this report, please adjust your exporting rights for these modules in Properties for Profiles."

So i went to profiles (Modules), made some adjustments and saved. But still I can't export reports.
Could you guys please help me out and give me the information I need to export reports?

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My second question: 
In a few of my reports I've added some advanced filters, but I can't seem to find them anywhere...Where can I find these filters?

Thanks very much. 

Stanley Janssen