Solution : https://service.sap.com/sap/support/notes/743839 (SAP Service marketplace login required)
Key words :
sap logon screen, http client implementation, export takes place, bw web application, url addition &no_session_cookie=, terms export, web browser, web template, microsoft excel, table exported
Related Notes :
| 735493 | Excel 2003: Logon screen with "Save as" |
| 653099 | Repeat password request when you download to Excel |
| 498936 | Logon/password change in Web with BW 3.0B or higher |