To do Alt + P B R on Mac in Excel, download and install Accelerator Keys, then press Option, followed by P, B, and R.
Command: Remove Page Break
This is how to do Alt + P B R on Mac in Excel with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with Excel.
Alt + P B R removes the page break at the current cell position. This is useful when you’ve manually inserted a page break and want to remove it without affecting other page breaks in your worksheet.