Try This:
This would work if you were importing directly into AE without having trimmed in Premiere first. I’ll cover that in 2
1) from Windows go to the root folder of where all the EX3 files are. control-F to do a search and type in *.mp4
That will then ONLY show the mp4 files. Drag and drop.
2) if you need to trim in Premiere first then setup a sequence in premiere with all your clips, trim them, select them all from the sequence (audio too, if you want) right click, select ‘replace with After Effects composition’. Now all the clips will be in AE, each as their own layer.