.PAT File Extension

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.

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.

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.

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.