.PHO File

File extension pho is associated with the Gerber format (known as RS-274) used in PCB industry as standard. Designed to drive aperture based vector photo plotters.

Typically exported from a .grb file, supported in several gerber viewers and editors.

Files with pho extension can be found as one the gerber file types, designs of printed circuit boards for CAD/CAM industry. It is supported by the Altium Designer.

How to open:

A .pho file can be for example opened using the Altium Designer printed circuit board, FPGA and embedded software design tool.

How to convert:

Gerber files (designs of PCB) can be usually exported between various CAD/CAM formats, or exported as simple images.