Grid Tool
Adobe Illustrator
Step-by-step Tutorial: Use the Adobe Illustrator Line Grid Tool and the Live Paint Tool to create a grid-based graphic.
Exporting Files
Adobe Illustrator
Step-by-step Tutorial: Use Adobe Illustator to export artboards for specific file types.
Photoshop Interface
Adobe Photoshop
Step-by-step Tutorial: Adobe® Photoshop overview of the interface