Kinds of 123 Files

Leading 123 Type

.123

File Ext:	.123
File Type:	Lotus 1-2-3 Spreadsheet

A spreadsheet file made using Lotus 1-2-3; it organizes data in columns and rows. Functions can be applied to various cells data, this way other cells can be automatically populated with the data.

Programmer:	IBM
Kind:	Spreadsheet Files
Subkey:	HKEY_CLASSES_ROOT\.123

Software Programs That Open The Lotus 1-2-3 Spreadsheet:

Apache OpenOffice by Apache Software Foundation

Windows

Mac

Android

Linux

NeoOffice by Planamesa Software Inc.

Mac

Gnumeric by Open Source

Windows

Mac

Linux

Lotus 1-2-3 by IBM

Windows

Mac

Other 123 Descriptions

.123

File Ext:	.123
File Type:	PCB123 Circuit Board Design

PCB (Printed Circuit Board) layout made using PCB123. It has the circuit board design, which could include several components; it supports two, four and six-layer circuit boards having solder mask as well as silkscreen options.

Programmer:	Sunstone Circuits
Kind:	CAD Files

Software Programs That Open PCB123 Circuit Board Design Files:

PCB123 by Sunstone Circuits

Compatible with:

Windows

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Understanding 123 Issues

Issues Opening 123 Files

Apache OpenOffice Removed

You encounter an error message such as "%%os%% Can't Open 123 Files" when trying to open your 123. When this happens, it is commonly due to Apache OpenOffice missing in %%os%%. The typical path of opening your 123 with a double-click won't work because %%os%% cannot make the program connection.

Tip: If you don't have Apache OpenOffice installed, and you know of another program to open your 123 file, you can try opening it by selecting from the programs listed under "Show Apps".

Wrong Version of Apache OpenOffice is Installed

In some cases, you might have a newer (or older) version of a Lotus 1-2-3 Spreadsheet file that is unsupported by your installed application version. If you've got the wrong version of Apache OpenOffice installed, you'll need to install the correct version. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Find clues on the correct software version by right-clicking your 123 file and clicking "Properties".

Summary: Not having the right Apache OpenOffice version on your computer can cause problems opening 123 files.

Associated Difficulties Loading 123 Files

Errors opening Lotus 1-2-3 Spreadsheet files can still occur even with the latest Apache OpenOffice software installed on your computer. Other 123 opening errors can be created by other system problems inside of %%os%%. These other problems include (listed in order from most to least common):

• Windows Registry 123 file paths that are incorrect
• Unintentional removal of the description of the 123 file inside the Windows Registry
• Apache OpenOffice or another 123 application experienced a flawed installation
• The 123 itself is corrupted
• Your 123 is infected with malware
• Device drivers of the hardware associated with your 123 file are corrupt or out-of-date
• Your PC doesn’t have enough available resources to open the Lotus 1-2-3 Spreadsheet file