In order to export textured OBJ files toggle Export .obj Files on the left-hand panel then render as usual. This will render out a sequential series of .OBJ files with .MTL files and matching .PNG frames to the _RenderBin/ folder.
It will using your first camera keyframe as the in point and the last keyframe as the out point for the render. Keep in mind that there is no camera tracking or perspective information embedded in these sequences as they are simply textured 3D files, but it does still use your first and last camera points as in & out points for the render.
Follow the same procedure for exporting Alembic (.ABC) files. They will render out a single geometry file that includes all your frames, accompanied by a series of PNG textures.