Alt M K K on Mac: Error Checking in Excel

To run Error Checking with Alt M K K in Excel on a Mac, install LightningXL, tap Option, then type M, K, K. The same keys as Windows, with the same result.

Step by step

1. Install LightningXL

   Download LightningXL, then follow the instructions. Setup takes about two minutes.

2. Select what to act on

   Click a cell, or select the range the command should apply to.

3. Tap Option, then type M K K

   Tap ⌥ on its own to show the keytips, then M for Formulas, K for Error Checking, K for Error Checking.

What Alt M K K does

Error Checking sits under Formulas › Error Checking on the Excel ribbon. On Windows, Alt M K K runs it from the keyboard. Excel for Mac has the same ribbon but no Alt key, so without LightningXL you click through Formulas › Error Checking › Error Checking instead.

Related shortcuts

The rest of the Error Checking menu in Excel:

• ⌥MKT Trace Error
• ⌥MKC Circular References