In word, how do I modify the default directory format?

1. Open a directory, and click "reference-" Directory-"insert directory" in the red box below, as shown in the following figure.

2. Now the Directory window is displayed. Click "modify" in the lower right corner.

3. Click "modify" to go to the "style" dialog box. Here we can see directories 1, 2, 3 ,...... click here to modify the directory, and then click "modify.

4. Click "modify" to go to the "modify style" dialog box. Now we can modify the style, including the font format. After the modification, click "OK.

5. If you are not satisfied, click "more formats.

6. After modification, click "OK". The system will remind you whether to replace it. Click "yes" to replace it.