Do not use text boxes and prefer tables instead.
Do not insert shapes or icons and prefer images or Word symbols instead.
Do not overlap tables, text boxes, or objects.
Prefer the JPG format for photos rather than PNG.
Use standard Word fonts, especially for symbols: Webdings and Wingdings.
Make sure all tags start and end with two ##.
Do not include spaces in tags.
For logos, place the image directly in the export file rather than using the tag of a Fixed Image field.
Best practices for custom Word
Best practices for a custom Word export