croms909 Unfortunately, that should be quite difficult. Spine can import JSON files, so if you can export your After Effects project as a JSON file according to Spine's format, it should be possible to import it into Spine, but we do not provide such a tool and you need to prepare it yourself.
If I must say, you could at least reproduce the layout of images in your .aep file by exporting a frame from After Effects as a .psd file, exporting that .psd using PhotoshopToSpine, and importing it into Spine using the exported JSON file.