Alt + O C Mac Excel Shortcut: Legacy Column Menu (2026 Guide)

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Quick Answer

To do Alt + O C on Mac in Excel, install Accelerator Keys, then press Option, then O, then C. It opens the Excel 2003 Format > Column menu. Then press the next letter, such as W for Column Width.

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If you are looking for the Alt + O C shortcut on Mac Excel, you may know it from Excel 2003, where Alt + O opened the Format menu. Windows Excel still accepts these menu keys. With Accelerator Keys, they work on your Mac too.

What Does Alt + O C Do?

Alt + O + C is the legacy shortcut for the Format > Column menu. From there you set the column width, AutoFit the width, hide or unhide columns, and set the standard width.

How It Works on Mac

Excel for Mac keeps the Format menu in the macOS menu bar. Accelerator Keys opens Format > Column and shows the Windows letter on each item. Then you press the next letter, the same as on Windows. It works on any ribbon tab and at any window width.

Supported Alt + O C Sequences

Shortcut Command Modern Equivalent
Alt + O + C + W Column Width Alt + H + O + W
Alt + O + C + A AutoFit Column Width Alt + H + O + I
Alt + O + C + H Hide Columns Alt + H + O + U + C
Alt + O + C + U Unhide Columns Alt + H + O + U + L
Alt + O + C + S Standard Width Alt + H + O + D

Step-by-Step: How to do Alt + O C on Mac Excel

  1. Install the Fix: Download Accelerator Keys (14-day free trial, no credit card required).
  2. Select the columns: Select the columns you want to change.
  3. Press Option: Press the Option key. It works like Alt on Windows.
  4. Press the letters one at a time: Press O, then C.
  5. Result: The Format > Column submenu opens. Each item shows its Windows letter.

Then press the next letter from the table above. Press Esc to close the menu.

Frequently asked questions

Does Alt + O C work natively on Mac Excel?

No. Excel for Mac’s own KeyTips do not support the legacy Alt + E, Alt + I, Alt + O, and Alt + D menu keys. Accelerator Keys adds them. Press Option, then O, then C.

What keys come after Alt + O C?

Press W (Column Width), A (AutoFit Column Width), H (Hide Columns), U (Unhide Columns), S (Standard Width).

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