You will find that there are dozens of different tutorials available online, ranging from books and courses that you can pay for to tutorials and video lessons that can be downloaded for free. Each of these courses is broken down into sections that will address each of the different sections of formula so that you can learn them in groups. This tends to make it much easier to fully grasp the necessary formula for each section before moving on to the next segment.
Now that the columns you want reformatted to a different size have been chosen, it is time to do just that. Using your computer‘s mouse, right click anywhere within the highlighted area. This will bring up a pop-up menu. On that menu is the option ”column width”. Click on that option. This will bring up a window asking you to enter in the width of the columns. If there is a number already in that box you will need to erase that first by highlighting it and pressing your ”delete” key. Now type in the number ”12” and click the ”Ok” button.