Electrical Panelboard Load Calculator Excel 
Calculate Voltage / Voltage Difference of Each Phase, Calculate Unbalanced Load in Neutral Wire.
Calculate Expected Temperature rise in Each Phase. Calculate Load in Each Phase and Outgoing Feeders, Calculate Starting/Full Load/Continuous/Non Continuous Load, Calculate Size of Cables for Each Outgoing Feeder. 

Structural Rectangular Spread Footing Analysis Calculator 
This program assumes that the spread footing is in fact "rigid", so that the bearing pressure is distributed
linearly on a homogeneous soil. (Note: the actual footing is generally not "rigid", nor is the pressure beaneth
it distributed linearly. However, it has been found that solutions using the assumed "rigid" concept are
adequate and generally result in a conservative design.) 

