Yes, I can definitely help you with that! Here are the steps to format the page numbers in the footer to start at a specific page number:

1. Open your Excel file and go to the first worksheet that you want to start numbering from.
2. Click on the "Page Layout" tab in the ribbon at the top of the screen.
3. Click on the "Page Setup" button in the lower right-hand corner of the "Page Setup" section.
4. In the "Page Setup" dialog box, click on the "Header/Footer" tab.
5. In the "Footer" section, click on the "Page Number" button.
6. Select the "Format Page Numbers" option from the drop-down menu.
7. In the "Page Number Format" dialog box, select the "Start at" option and enter "1" in the box next to it.
8. Click "OK" to close the "Page Number Format" dialog box.
9. Click "OK" again to close the "Page Setup" dialog box.

Now, the first three worksheets will not have page numbers, and the numbering will start at 1 on the fourth worksheet. When you print the worksheets as a group, the numbering should start at 1 as well.