*.PLT Files

[Andrew Fleming]

plt files are usually gerber files, you will need composer. Or email the files to somebody with GSP software, (like me) and they could convert for you.

[Alan Drury]

Signlab and corel Draw will both import HPGL *.plt files and Signlab will also import Advantage/Omega *.plt files.
Alan

[Paul Goodwin]

Thanks Guys i tried inporting into coreldraw 10 and signlab v5 with no luck 🙁

all i need is 1 file mirrored if you wouldn’t mind doing it

[Andrew Fleming]

send it to me at sales@mcmordiebros.co.uk and i will sort

[Boraxx]

I had few costumers that made wrong conversion/export. Usually the bad files are small in size.
Corel shouldnt have any problem with PLT.

[John Cornfield]

Yeah Corel handles .plt files normally no problems it may be the file is corrupted.

We convert in corel to take to our router.

[Frank Droog]

PLT files can be anything (HPGL,HPGL2, DMPL RDGL GPGL , calcomp etc)
But 95 percent of the time its going to be HPGL.
But, for some unknown reason, Gerber also chose to save thier Drawing files with a PLT extension. Talk about potentional for confusion.

You need top know if its a HPGL PLT file or Gerber Drawing file which also has PLT extension.
Futhermore, you need to know if its a Gerber Omega or Gerber Advantage PLT file.

Try to open the file in NotePad.
If you see a lot of “PU”s and “PD”s with lots of numbers, its HPGL
If you see nothing but wierd gibberish like squares and happy faces, its probably a Gerber PLT file.

Most all programs can import HPGL but only Gerber and newer versions of Signlab can import Gerber drawing PLT files that i know of.