is there any way to import a PNG or a STL file into Easel. I have a military device to carve into a plaque.
PNGs can be converted to JPGs or BMPs and these can be imported into Easel. STL files are 3D shapes and cannot go directly into Easel. For STLs you would need additional software such as Fusion 360 or Vcarve.
For STLs, I use Vectric V-Carve desktop, but others in the forum use other software.