With Filestar you get 20 different skills for working productively with Sketch Drawing (.sketch) files.
About .Sketch
Name
Sketch Drawing
Extension
.sketch
Format
Binary
Category
UX
Developer
Bohemian Coding
Description
A SKETCH file is a vector graphics file created by Sketch, a vector drawing program for Mac OS X. It contains one or more layers of drawn objects that may include text, shapes, symbols, or images. SKETCH files are saved in the Sketch image format that is only supported by Sketch.