For use Statistics (excel macros) CCs provides the procedure
01) Open Excel
02) Select "Excel Options"
03) Select "Trust Center"
04) Select "Macro Settings"
05) Check the "Enable all macros (not recommended...)" option.
IT IS MANDATORY TO SET THE LEVEL TO THIS VALUE at this step of the procedure !
Step 15 will put back the right level.
06) Check "Trust access to the VBA project object model".
07) Validate.
08) Stop the Excel application to take the modification into account.
09) Start the Excel application again.
10) Select "Excel Options"
11) Select "Trust Center"
12) Select "Macro Settings"
13) Check the "Disable all macros with notification" option.
14) Validate.