.LIN File Extension
File Type 1AutoCAD Linetype File
What is a LIN file?
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."
File Type 2X-Plane Painted Line File
.LIN File Association 2
Painted line file used by X-Plane, a professional flight simulator; contains data that defines taxiway markings on the ground.
The LIN file consists of a header and commands that define different aspects of the lines, such as the texture, size, scale, and direction (rounded or sharp corners).