If you're like most people, you probably use the Autosum feature in Excel to quickly sum up a column or row of numbers. But did you know that there are a few tricks that can make Autosum even faster and easier to use? Here are 15 of them:

1. To sum a column of numbers, simply select the cells in the column and press Alt + = (equal sign). Excel will automatically insert the SUM function for you.
2. To sum a row of numbers, select the cells in the row and press Shift + Alt + =.
3. To sum a range of cells, select the cells you want to sum and press Alt + =. Excel will automatically insert the SUM function for you.
4. To sum only visible cells in a range, select the cells you want to sum and press Alt + Shift + =. This is useful if you have a range of cells that contains hidden values that you don't want to include in the sum.
5. To sum all cells in a worksheet, press Alt + =. Excel will automatically insert the SUM function for you.
6. To sum all cells in a worksheet that contain numbers, press Alt + Shift + =. This is useful if you have a worksheet that contains text and numbers, and you only want to sum the numbers.
7. To sum all cells in a worksheet that contain values, press Alt + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and blank cells, and you only want to sum the cells that contain values.
8. To sum all cells in a worksheet that contain formulas, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and formulas, and you only want to sum the cells that contain formulas.
9. To sum all cells in a worksheet that contain errors, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and errors, and you only want to sum the cells that contain errors.
10. To sum all cells in a worksheet that contain text, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and text, and you only want to sum the cells that contain text.
11. To sum all cells in a worksheet that contain numbers, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and numbers, and you only want to sum the cells that contain numbers.
12. To sum all cells in a worksheet that contain dates, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and dates, and you only want to sum the cells that contain dates.
13. To sum all cells in a worksheet that contain time values, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and time values, and you only want to sum the cells that contain time values.
14. To sum all cells in a worksheet that contain non-numeric values, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and non-numeric values, and you only want to sum the cells that contain non-numeric values.
15. To sum all cells in a worksheet that contain formulas, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and formulas, and you only want to sum the cells that contain formulas.
16. To sum all cells in a worksheet that contain errors, press Alt + Shift + Ctrl + =. This is useful if you have a worksheet that contains text, numbers, and errors, and you only want to sum the cells that contain errors.

As you can see, there are a few tricks that can make Autosum even faster and easier to use. Give them a try the next time you need to sum a column or row of numbers in Excel.