Write a script for Excel 2016

I have a set of approx 90 standardized excel files (in .csv format), which all need to be manipulated the same way. I need a script that I can run as I get more of the same files over time. This is what it needs to do (some details removed, will be delivered upon starting the assignment): Step 1: Delete columns a&b&d&h&j&p&q Step 2: Insert 4 columns before column A Step 3: add the following Column Headers in Row 1: Field A1 = Field B1 = Field C1 = Field D1 = Field E1 = Step 4: Insert 7 columns between columns E and F Step 5: add the following Column Headers in Row 1: Field F1 = Field G1 = Field H1 = Field I1 = Field J1 = Field K1 = Field L1 = Field M1 = Step 6: Remove the "X" throughout column M Step 7: Move the first cipher from Column M to Column L. Step 8: add the following Column Headers in Row 1: Field N1 = Field O1 = Field P1 = Field Q1 = Field R1 = Field S1 = Field T1 = Field U1 = Field V1 = Field W1 = Step 9: The text in Column N needs to be abbreviated according to the following rules: Step 10: Column I must match column E, but all space must be exchange for -'s. Step 11: Save as .csv and return