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123 File

What are 123 files and how to open them

Are you having problems opening a 123 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your 123 files.

What is a 123 file?

123 files have multiple uses, and PCB123 Circuit Board Design is one of them. Read more about the other uses further down the page.

PCB123 Circuit Board Design

These files contain a Printed Circuit Board (PCB) designed with the PCB123 software, which is a PCB design solution with a design-to-order function. A 123 file contains a single board design project.

You can put together a complete circuit board using your preferred component parts and layers, view it in 3D, and even order finished electronic boards from within the software.

How to open 123 files

We have identified one 123 opener that is compatible with this specific type of 123 file.

Programs that open PCB123 Circuit Board Design files


Last updated: December 21, 2023

All known file formats using extension .123

While PCB123 Circuit Board Design is a popular type of 123-file, we know of 2 different uses of the .123 file extension. Different software may use files with the same extension for different types of data.

Lotus 123 Worksheet

A file with a .123 extension is a file of the Lotus 123 spreadsheet application. The Lotus 123 was an obsolete spreadsheet application developed by Lotus Software, which later became a part of IBM computers.

The Lotus 123 application was popular during the 80s up to the early 90s, being the first most-needed application of the IBM PC. The application paved the way for the marketing success of the IBM PC at that time.

The 123 in the application's name meant its three features: 1. Spreadsheet computations, 2. Database functionality, and 3. Graphic chart creation.

123 opener for Windows

We have identified 2 123 openers that are compatible with this specific type of 123 file.

Various apps that use files with this extension

These apps are known to open certain types of 123 files. Remember, different programs may use 123 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

LibreOfficeLibreOfficeUser submitted
StarOffice CalcStarOffice CalcDiscontinued
Microsoft OfficeMicrosoft OfficeUser submitted
Microsoft ExcelMicrosoft ExcelUser submitted
OpenOffice.org BaseOpenOffice.org BaseUser submitted
TableurTableurUser submitted
Adobe AcrobatAdobe AcrobatUser submitted
IBM LotusIBM LotusUser submitted
LotusLotusUser submitted

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