Hi Michel,
Please note that BEx Broadcaster is the tool in the Business Explorer Suite with which you can make the objects that were created using the various BEx tools available to a wide range of users
according to your requirements. The BEx Broadcaster also provides functions for optimizing performance and for exception reporting.
Using the BEx Broadcaster, you can precalculate queries, query views, Web templates, reports, and workbooks and broadcast them by e-mail or to the portal. As well as precalculated documents in various formats (HTML, MHTML, ZIP file etc.) containing historical data, you can also generate online links.
You can broadcast BEx objects as either precalculated documents or online links (workbooks cannot be broadcast as online links, however).
Please refer the following link for more details about this:
https://help.sap.com/saphelp_nw73/helpdata/en/a5/359840dfa5a160e10000000a1550b0/content.htm
Thanks & Regards,
Sapna