What Is a PAT File?
There’s more on these kinds of files at the bottom of this page.
How to Open a PAT File
Pattern images can be opened for free withGIMPand even online withPhotopea.
Adobe Photoshopworks, too, and surely other popular photo and graphics tools as well.
If you’re using Photoshop,Window>Patternswill display the imported patterns in the right panel.
A PAT file might instead be used as an AutoCAD Hatch pattern or CorelDRAW pattern.
These can be opened usingAutodesk AutoCADorCorelDRAW Graphics Suite, respectively.
There isn’t really a good reason to convert one to a different file format.
An actualfile convertercalledreaConvertercan convert PAT to JPG,PNG,GIF, PRC,TGA,PDF, etc.
If applicable, the option might be in theFile>Save AsorFile>Exportmenu.
Still Can’t Open It?
APT files share the same file extension letters, but are Almost Plain Text files.
During pattern selection you’ll be given options to either save or load individual patterns, i.e.
