You could have downloaded XPSWMM 16.0 from our software library for free. Our antivirus check shows that this download is virus free. ".xp" is the extension this PC software can operate with. The following versions: 16.0, 10.6 and 10.0 were the most frequently downloaded ones by the program users. XPSWMM belongs to Education Tools. The actual developer of the software is XP Software. The program's installer files are generally known as xpswmmEval.exe, xpswmm_app.exe or xpswmp32.exe etc.
From the developer:
xpswmm is a program designed for dynamic modelling of stormwater, river systems, floodplains and foul water or combined systems. It combines one-dimensional (1D) calculations for upstream to downstream flow with two-dimensional (2D) overland flow calculations so that you can see what truly happens to your stormwater or sewer system when waters flow, populations increase or catastrophic events hit.
You may want to check out more software, such as SatCalc, MathMatic or MemBrain, which might be related to XPSWMM.