# Iteration, that is, counting the repetition of a set of instructions in a program.Some formulas in EXCEL need to enable iterative calculation before the formula can operate normally. So how do you enable iterative calculations? Please see this introduction.
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1. Such as this For example, a formula has been entered in column B. This formula displays the time the name was entered in column B after entering the name in column A. However, because iterative calculations are not enabled, the formula does not work.
#2. Click the [OFFICE button] and select the [EXCEL option] button from the pop-up options.
#3. As shown below, the [EXCEL Options] dialog box pops up.
4. Select the [Formula] option on the left side of the dialog box, and check the [Enable Iterative Calculation] function in the [Calculation Options] on the right side.
#5. Click the [OK] button to return to the worksheet. The formula originally set in column B can be calculated normally.
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