Date Format with SAP Broadcaster in Workbook

Hello guru's,

I send a workbook in broadcaster, using precalculation server.

In the workbook the date format should be DD/MM/YYYY.

However, the format keeps showing as MM/DD/YYYY.

When I open the workbook with BI Analyzer the format in the workbook shows okay: DD-MM-YYYY .

Information

Fort the "setting OWNER" as well as the "background-execution user" the following usersettings in SU01 have been made --> language Dutch and date format DD.MM.JJJJ .

Settings in the system where precalculation server is installed: dd/mm/yyyy .

Question

How can I influence the date format (either in SAP Broadcaster and/or precalculation server)?

We have BW 7.4 system.

Thanks in advance for any reply.