Solution : https://service.sap.com/sap/support/notes/537589 (SAP Service marketplace login required)
Key words : 
bw front-end check tool sapbexc, bw front end check tool sapbexc, \program files\common files\sap\system, sap business explorer analyzer existing workbooks, /swcenter-mainthe sap download area, procedure downloading bw front-end patches, sap business explorer web application designer, download bw front-end patches, bw front-end patch directly, bw front-end patch consists
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