Having problems opening a 123 file?

Find out what programs can help open, view, play or convert your 123 files.

Opening 123 files
PCB123 Circuit Board Design

Did your computer fail to open a 123 file? We explain what 123 files are and recommend software that we know can open or convert your 123 files.

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What is 123 file?

Printed circuit board (PCB) layout created with PCB123, a PCB design program; contains a circuit board design, which can include multiple components; supports 2, 4, and 6-layer circuit boards with soldermask and silkscreen options. Completed PCB123 designs can be sent to Sunstone Circuits for manufacturing. Assembly quotes are provided within the program.

Software that will open, convert or fix 123 files

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