To do Alt + I N P on Mac in Excel, install Accelerator Keys, then press Option, then I, then N, then P. It runs the Excel 2003 command Insert > Name > Paste.
If you are looking for the Alt + I N P shortcut on Mac Excel, you may know it from Excel 2003, where Alt + I opened the Insert menu. Windows Excel still accepts these menu keys. With Accelerator Keys, they work on your Mac too.
Alt + I + N + P is the legacy shortcut for Insert > Name > Paste. It opens the Paste Name dialog. It lists the names in the workbook. Pick one, and Excel puts it in the formula you are writing.
On your Mac, Accelerator Keys runs Insert > Name > Paste in the Excel menu bar. It works on any ribbon tab and at any window width.
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 I, then N, then P.