The File Extensions Database

.PAT File Extension

  • Developer by: Synology
  • Category: System Files
  • Format: Binary

What is an .PAT file?

.PAT is DiskStation Manager Installation File

System file used by DiskStation Manager (DSM), the operating system used for Synology NAS devices; contains the files required to install or update the low-level operating system software that runs the device; can be used from the DSM Control Panel by choosing "DSM Update" and then the "Manual Update" option.

PAT files are also used by Synology Assistant, a program used for installing firmware onto DSM devices. During the DSM device setup process, the Synology Assistant requests the PAT installation file for the device. You can retrieve the PAT file from your Synology installation CD or from the Synology download center.

Programs that open DiskStation Manager Installation File
Synology Assistant
Synology Assistant
Synology Assistant
File Type 2:

AutoCAD Hatch Pattern File

Developer by: Autodesk Category: CAD Files Format: Text

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.

Hatch patterns are vector-based and are written in a plain text format. Consult the AutoCAD documentation to learn the syntax used for writing hatch patterns.

Programs that open AutoCAD Hatch Pattern File
Autodesk AutoCAD 2018
File Type 3:

Pattern File

Developer by: Adobe Systems Category: Raster Image Files Format: Binary

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 Pattern File
Adobe Photoshop CC 2019
ACD Systems Canvas X 2019
Corel PaintShop Pro 2019
Corel Presentations X9
Adobe Photoshop CC 2019
File Type 4:

CorelDRAW Pattern File

Developer by: Corel Category: Vector Image Files Format: Binary

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 CorelDRAW Pattern File
CorelDRAW Graphics Suite 2018
File Type 5:

3D Patch File

Category: 3D Image Files

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 3D Patch File
Autodesk AutoCAD 2018
AeroHydro SurfaceWorks
Autodesk AutoCAD 2018
File Type 6:

Ketron Sound Pattern File

Developer by: Ketron Category: Data Files

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 Ketron Sound Pattern File
Ketron Software
File Type 7:

Gravis UltraSound GF1 Patch File

Category: Audio Files

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 Gravis UltraSound GF1 Patch File
FMJ-Software Awave Studio
File Type 8:

Kega Fusion Cheats File

Developer by: Kega Fusion Category: Game Files Format: Text

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 Kega Fusion Cheats File
Kega Fusion

How to solve problems with PAT files

  • Associate the PAT file extension with the correct application. On :
    Windows: Right click on any PAT file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.PAT files". Mac: Right click (or Ctrl-click) the PAT file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .PAT is DiskStation Manager Installation File. Because only the current version supports the latest PAT file format. Search, therefore, e.g. on the Synology manufacturer website after an available .PAT is DiskStation Manager Installation File update.
  • To make sure that your PAT file is not corrupted or virus-infected, get the file again and scan it with antivirus software.