Knowledge Base

File extension description in German
File extension description in French

File Extension 123

The file extension 123 is associated with two different programs which include Lotus 1-2-3 and PCB123. Lotus is a program offered by IBM which provides spreadsheets and workbooks for managing a wide variety of data. PCB123 is industrial software which assists engineers with circuit board design.

If the file extension 123 is related to Lotus 1-2-3, it is a spreadsheet file type that contains text, graphs, charts, mathematical calculations, formulas, data structures, and other elements that are commonly used with a spreadsheet or workbook. Lotus 1-2-3 is an older spreadsheet application created by IBM during the 1980s and was since discontinued as other applications such as Microsoft Excel became more popular on the market.

123 file extensions associated with PCB123 are a 3D graphics file type that contains three dimensional diagrams, lines, objects, mathematical calculations, and other components that are used with Computer Aided Design. PCB123 is produced by Sunstone Circuits and is a free Computer Aided Design (CAD) program used to design electrical circuits and circuit boards.

How to Open 123 Files

123 files that are related to Lotus 1-2-3 can be opened using a variety of different programs. Although Lotus 1-2-3 is an older program, you can still obtain version 9.8 on the IBM website to open 123 file extensions. Lotus 1-2-3 is compatible with the Windows operating system.

You can also open 123 files in Windows using Corel WordPerfect Office X6, which is available for download on the Corel website. WordPerfect Office contains a spreadsheet application known as Quattro Pro that will support 123 file extensions.

Gnumeric and LibreOffice will also open 123 file extensions in Windows. Both programs are open source and available as a free download. You can obtain Gnumeric on the website, and LibreOffice is available on the website.

Lotus 1-2-3 spreadsheet files can also be converted to another extension such as the XLS extension to enable the 123 file to be opened in Microsoft Excel. There are a variety of file conversion programs available as a free download on websites such as CNET and Softpedia which will convert 123 files for you.

For Mac OS X, you can open 123 files related to Lotus using Planamesa NeoOffice or OpenOffice Spreadsheet, which is part of the OpenOffice Suite of productivity applications. OpenOffice is available as a free download on the website and is compatible with Windows, Mac OS X, and the Linux operating system.

If the file extension 123 is created with PCB123, you can open the file using PCB123 Design Software. You can download a free version of PCD123 from the Sunstone Circuits website or the CNET website. PCB123 is compatible with the Windows operating system.