Excel problem

3 A B C D E F G H I K 1 Create a new column that contains: 2 the sum of columns A and B if the number in column A is greater than zero OR the number in column C is less than 30 and column B is between 20 and 30 inclusive if those conditions are not true, add columns B and C. 4. Do the 'OR' first. In MATLAB (test1 || test2) && test3 The first 8 numbers should be: 74.39 59.58 73.4 39.2 Col A Col B Col C 65.63 45.39 50.59 31.58 70.73 43.4 62.76 22.2 33.63 19.59 43.73 30.76 72 7.6 3.43 11.01 40.61 32.97 17.02 40.16 50 23.49 29.96 18.71 5.89 11.24 -47 39.06 79 4 -32