# GSAG – Golden Software ASCII Grid File Format

Driver short name

GSAG

Driver built-in by default

This driver is built-in by default

This is the ASCII-based (human-readable) version of one of the raster formats used by Golden Software products (such as the Surfer series). This format is supported for both reading and writing (including create, delete, and copy). Currently the associated formats for color, metadata, and shapes are not supported.

NOTE: Implemented as `gdal/frmts/gsg/gsagdataset.cpp`.

## Driver capabilities

Supports Georeferencing

This driver supports georeferencing

Supports VirtualIO

This driver supports virtual I/O operations (/vsimem/, etc.)