In reply to Laura.

CSV importers do ASCII art.

Comma Separated Values is an ancient data-file method, also used for arbitrary text & export/import... works great for ASCII art. You need to scan the art for commas ... or more like, change the Value Separator to a character not in the art.

Searching plugins (I did it from my Dash) with 'ascii art' shows lots of CSV plugins. You just need a simple, barebones CSV importer.

You will also see ASCII art generator plugins.