CRM 7 authorization request when copy to Excel

Dears,

I have an issue when copying any text from CRM WebUI Interaction Center to Excel using CTRL+C CTRL+V technique. Every time I'm receiving authorization window when copying data to Excel 2013.

After clicking several times 'Cancel' button the data are copied. The data are also copied if I use 'Copy values' in Excel.

The question is whether is it possible to have the standard mechanism working without authorization window.

Regards

KK