This is a very simple program which lists all numbers with given Sum Of Digits . Also you can find the sum of digits of a number of your choice. And there is an option to save the list to text file. The interface is very simple . Just enter the sum that you want and also max number of digits in a number and click calculate. All the numbers are shown in the table below . You can save the list from File>Save. Entering a number in the box below will show it's sum next to it instantaneously ... Please contact the author @ virtualkannan007@gmail.com for any suggestions or for getting custom softwares .