Finding out what files are in use by a .blend

Yes! In three weeks I’m going to the University!

With a laptop which has practically no space left :spin: So I’m cleaning it up, deleting old files etc etc.

I have a model / mesh / project, whatever you want to call it, which uses a number of textures. Only, in the course of time I’ve improved, changed and replaced textures but didn’t delete the old one. The result is that I have many textures and only a few of them are in use by the model. Is there a way to find out what textures are in use by that specific blender file?

I know you could also just select each separate mesh and find it out with your own eyes, but that’s quite a bit of work:yes:

Thanks all!