Editing a saved file of mailing labels
You can edit individual records in the normal fashion, by highlighting and changing the font name, for example. However, you cannot edit globally (changing the font name for all records, for example) by selecting the entire document.
To make global changes, you must edit the style:
Right-click any correctly spelled word in a label record. Select Edit Paragraph Style from the popu-up menu. (Note: If you click on a misspelled word, a different context menu will appear.)
Then from the paragraph style dialog, you can make change to the font name, the font size, the indents, etc.