The WDNetXL is an integrated system for water distribution network (WDN) analysis, planning and management distributed as MS-Excel® add-ins. It integrates advanced and robust WDN hydraulic simulation with topological analysis and optimization strategies to support technicians for complex WDN analysis, design and management problems. The WDNetXL system permits to realize just-in-time technology transfer from technical research to WDN management sector through a holistic platform, which is ready for possible extensions to the latest innovations, thus providing an upgradable support to match current and future technical needs.