What is a sketch file and how do I open a sketch file?
A file with the SKETCH extension is a vector graphics file created by Sketch, a vector drawing program for Mac OS X. The file saves drawn objects using multiple layers, and supports documents of infinite size. It is used for digital art and other graphics.
Relevant sketch file links:How to open sketch file on Youtube
How to open sketch file on Wikipedia
How to open sketch file on Microsoft.com