How do you widen the cells on Microsoft Excel?

What you do is widen the column, as an individual cell cannot be widened by itself. There are a few ways of widening a column. The simplest is to the the cursor between the column headings at the top of the worksheet with the column you want to widen being on the left. So if you wanted to widen Column A, go to where A and B are at the top of their columns and put the cursor in between the headings. If you do it correctly the cursor will change to having two arrows, one pointing left and one right, coming off a line in between them. Then press and hold the mouse button and drag to the right and column A will widen.

Another way is having put the cursor in that position, to do a double click on the mouse. If there is any text in a cell in that column that is wider than the cell, the column will adjust to that width. the third way is to go to the Format Menu and pick Column and then Width.