Line type definition (also called a "linetype" or "line style") that defines the paths of a vector-based object used by AutoCAD; stores shapes information in a text-based format.
Linetype files can also be imported into the MicroStation Line Style Editor by selecting "File->Import->AutoCAD Line Style File."
Program(s) that open lin files
Windows: Autodesk AutoCAD; Bentley MicroStation; Can be edited with a text editor
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/lin
