Hi, Skartalov
Loaded your file, Clean, Optimize, Set the short lines to a New layer "#2", Set Outer Box to New layer "#3".
Offset didn't work very well, So I set the text and short lines to .030 Depth and the box to .100.
You should be able to cut this with a engraving type tool, Pointy end cutter.
Hera's a G-code and .LCAM file to look at.
Hope this Helps, Chip