I found an unused file in my collections that isn't showing up in media check

Does anyone know what are these mysterious photos? They do not come up in media check and neither in a search.


It seems like it’s a textbook maybe? 第一章 means something like first chapter. The rest is MCQs maybe?

Probably from a deck you imported in the past. Files with leading underscores skip the usage check, and can only be removed manually.

You’re right. Though I have no idea why would any of my decks contain this.