How to Do Alt + M X M on Mac in Excel (Easiest Way)

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Quick Answer

To do Alt + M X M on Mac in Excel, download and install Accelerator Keys, then press Option, followed by M, X, M.

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Command: Manual Calculation

Step-by-Step Guide

  1. Download and install Accelerator Keys (14-day free trial, no credit card required).
  2. Follow the simple on-screen setup instructions (just a few clicks).
  3. Press the Option key (works like Alt on Windows).
  4. Press M, X, M to complete the shortcut.

This is how to do Alt + M X M on Mac in Excel with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with Excel.

What Does Alt + M X M Do in Excel?

Alt + M X M sets Excel’s calculation mode to Manual. In this mode, Excel only recalculates formulas when you explicitly trigger recalculation (using Calculate Now or Calculate Sheet). This is essential for working with very large workbooks where automatic recalculation would cause significant delays.

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