[Q] I have two enormous (comparatively) .thumbnail files on my phone

[Primevyl]

I was trying to free up some onboard space on my Rezzy, but i came across these two files, which compared to the rest of their peers, are fairly chunky...

what gives?! can i delete these without detriment?

 

[a.mcdear]

You can delete them, but I believe they will just be recreated by whatever app is caching thumbnails.. probably like a music app or the gallery or something.