Instructions - Inkscape Hershey Text Extension
Your zip file contains a file or files that are SVG fonts. Locate those and move them into this folder on your c:\ drive:
C:\Program Files (x86)\Inkscape\share\extensions\svg_fonts
It may also be located here:
Then for a demonstration of this font used with the Hershey Text feature in Inkscape, click this link: https://www.youtube.com/watch?v=RAU7CJcL_Bo&t=3s
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