To modify the logo on Mac, you will need to carry out a manual process, as the automatic logo change macro only works on Windows.
But rest assured that this is a very simple and practical process to do, just follow this step by step:
1 - In each tab of the worksheet, select the REVIEW tab (1) and then click on UNPROTECT
SHEET (2)
2 - Then just delete the default logo (Sua Logo Aqui) by clicking on it and clicking on the DELETE button
3 - Now just add your logo through the menu INSERT > ILLUSTRATIONS > PICTURES
> THIS DEVICE
4 - Choose the desired logo
OBS - it is also possible to do this process by copying the desired image (with CTRL+C) and then pasting it in the worksheet (with CTRL+V)
5 - Repeat this process for all worksheet tabs