Did a search and tried all the possible printing/copying/exporting options. Noticed that the font of the heading is different depending on which format you choose:
The preview, Print (or Print to PDF), Copy to Clipboard (and paste into Word), and XPS all use a serif font. Here's a screenshot from a Word document after pasting in:

Export to RTF, however, uses a sans serif font:

The rest of the text besides the title is all sans serif regardless of the format used.