8 file types use the .pat file extension.

What is a PAT file?

CAD file used by AutoCAD, a professional CAD drawing application; stores a hatch pattern which can be used to texturize or fill an area; helps give a material appearance (e.g., brick, aluminum, glass, or plastic) to drawn objects.

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Category: CAD Files

DiskStation Manager Installation File

A PAT file may also be a system file used by DiskStation Manager (DSM), the operating system used for Synology NAS devices. It contains files required to install or update the low-level operating system that runs the device.

PAT files are also used by Synology Assistant, a program used to install firmware onto DSM devices. During the DSM device setup process, Synology Assistant requests a PAT installation file for the device. You can use the PAT file located on your Synology installation CD or a PAT file downloaded from Synology Download Center.

You can use a PAT file downloaded from Synology Download Center to manually update DiskStation Manager. To do so, follow these steps:

Programs that open PAT files

Updated: July 14, 2020

Pattern File

Bitmap image used as a pattern that can be imported into multiple graphics programs; typically a square file that may be 8x8 pixels to 256x256 pixels in size; repeats to fill an area with the pattern; often used for creating a textured background.

Programs that open PAT files

Updated: December 4, 2018

CorelDRAW Pattern File

Vector pattern used by CorelDRAW Graphics Suite, a suite of programs that includes both raster and vector graphics editing applications; saves a pattern that can be repeated within a vector image or page layout document; often used for applying background textures.

Corel CONNECT, a graphics content browsing application included with CorelDRAW Graphics Suite, provides a graphics content package that includes several vector patterns, which can be included in images or documents.

Programs that open PAT files

Updated: March 22, 2012

3D Patch File

3D model file typically created by CAD programs; contains patches, which store the three-dimensional geometry as rectangular meshes; differs from other formats that use single vertices to store 3D shapes.

PAT files use a format similar to .3DA files.

Programs that open PAT files

Updated: August 24, 2015

Gravis UltraSound GF1 Patch File

Instrument patch file containing voices that can be played back by Gravis GF1-based sound cards; supports up to 16 waveforms per instrument, but does not support multiple layers.

Programs that open PAT files

Updated: December 4, 2006

Ketron Sound Pattern File

Ketron sound pattern format used to play different styles for the Ketron keyboards including the SD1, SD3, SD5, and Audya models; contains style sounds, levels, and effects; can be used for a wide variety of genres such as Rock, Jazz, Pop, R&B, Latin, Dance, and Gospel.

On SD models, the PAT files are located in the STYLE folder within the MASTER FOLDER, which is accessed when you push the MASTER FOLDER button on the keyboard. Depending on the keyboard version you are using you can load the PAT file via a floppy disk or USB drive. You can create a PAT file with the "Pattern Edit" function on SD models. On Aduya models, the PAT file is commonly accompanied by a .BIN file which contains the parameters for the style contained in the PAT file.

NOTE: You can open PAT files with Ketron software for the appropriate model of your keyboard.

Programs that open or reference PAT files

Updated: December 17, 2015

Kega Fusion Cheats File

Cheat codes file used by Kega Fusion, an emulator for the Sega MegaDrive (a.k.a. Sega Genesis) console system; saved in a plain text format and contains cheat codes for Sega games; can be referred to as a "patch" file.

Programs that open or reference PAT files

Updated: April 29, 2013