Fixing STL files for better 3D printing

Sometimes 3D prints come out with small but visible edges instead of being completely smooth, especially on curved surfaces. This explains how to save a high quality STL file in Solidworks for optimal 3D printing.
STL files are commonly used to prepare files for 3D printing. Printing a low quality STL file can lead to a tessellated (non-smooth) patterned surface and reduce the dimensional accuracy of the part.
This video explains STL file saving options 'deviation' & 'angle' within Solidworks