majjorie, to be clear xara already has this built into Xara Designer Pro under Names > Used Fonts, where a total selection allows the Fonts selector to change the font to another.
In Xara Web Designer (Premium), you have the ability to create Styles. Set a Style to have a particular Font and the replacement or location of a Font is tedious but straightforward.
My offered alternative approaches were to be more analytic and pinpoint down to a single glyph, like a bullet.
Don't overlook File > document Info for a final checkout.
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