Trying to upload a DXF to a vendor auto-tool & the border of the drawing sheet is giving me issues

Is there a good way to remove the borders without an outside software? I'm trying to upload a DXF to a vendor auto-tool, and the border of the drawing sheet is giving me some trouble.
Reference topic link - https://community.ptc.com/t5/3D-Part-Assembly-Design/Exporting-to-2D-dxf-filed/m-p/915413#M132330