svrki AutoCAD mI to neotvorí, najlepšie niečo free
File TypeAutoCAD Plotter Document
Vector-based plotter file created by AutoCAD drawing software; can be printed using a plotter, which prints images using lines instead of dots; based on the HPGL format.
Program(s) that open .PLT files
Autodesk AutoCAD 2012
Pocket PC CAD (DWG/DXF/PLT) Viewer
http://www.fileinfo.com/extension/plt
alebo
Total CAD Converter supports the following conversions with PLT files: PLT to DXF
PLT to WMF
PLT to PDF
PLT to JPEG
PLT to TIFF
PLT to PNG
PLT to BMP
PLT to CGM
PLT to HPGL
PLT to SVG
http://www.coolutils.com/Formats/plt
alebo
http://www.freedownloadscenter.com/B...plt-files.html