The method of setting "x-xx" page number in Word of Apple computer is as follows:

1. Open a word document by desktop shortcut or search.

2. Click the word document with the specified page number on the left side of the interface that opens later.

3. Click the "Insert" button at the top of the newly opened software interface.

4. Click the "Page Number" button in the next opened page, click "Page Bottom" in the next opened interface, and then select "Style II under X/Y".

5. Tick "/"and change it to "-".