MS Excel
You can auto fit the width of column by

Double clicking on column right border on column header
Double click on the cell pointer in worksheet
Double clicking on the column left border of column header
Double clicking on the column name on column header

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MS Excel
To create a formula, you first:

Enter the formula using any input values and the appropriate mathematical operators that make up your formula
Type the equals sign (=) to tell Excel that you’re about to enter a formula
Select the cell you want to place the formula into
Choose the new command from the file menu

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MS Excel
How do you select an entire column?

Click the column heading letter
Hold down the shift key as you click anywhere in the column
Hold down the Ctrl key as you click anywhere in the column
Select Edit > Select > Column from the menu

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