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.SGY File Extension

File TypeSEG-Y Data File

DeveloperSEG Technical Standards Committee
2.8 (5 Votes)
CategoryGIS Files
FormatText and Binary

What is an SGY file?

A SGY file is a data file saved in the SEG-Y (Society of Exploration Geophysicists) format. It contains geophysical data in binary and textual format, which includes the coordinates of reflected seismic waves. SGY files may store sweep frequency, types, and length, impulse signal polarity, projection zone and method, and other metadata.

More Information

SGY files are created by various seismic tools used to map and measure subsurface properties of the earth by sending a controlled energy signal and recording reflected waves, much like sonar devices. The SGY files can then be opened and viewed using various programs, such as Geopsy, and kogeo.

The SEG-Y format evolved from the SEG format, which was originally published in 1975 and is widely used in the geophysical industry.

NOTE: SEG files may also be saved as .SEGY files.

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Programs that open SGY files

Updated 8/7/2020

About SGY Files

Our goal is to help you understand what a file with a *.sgy suffix is and how to open it.

The SEG-Y Data file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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