.123 File Extension

File Type:
Lotus 1-2-3 Spreadsheet

Having trouble opening .123 extension? Don't panic! This page explains what 123 files are as well as suggests programs you may use to open 123 files. You can download these programs through this page.

What is a 123 file?

123 file extension has Lotus 1-2-3 Spreadsheet file type, developed by IBM, which is associated with the "spreadsheet files" category.

Associated with the Lotus 1-2-3, the spreadsheet manages data, grouping it in columns and rows. It also allows you to apply different functions to the data in separate cells, with further ability to populate the data in other cells.

Lotus 1-2-3 provides three key features: creating charts and graphs, spreadsheet functions and some basic database operations.

To learn how you can open the given file, read the information below.

123 file icon
File Type:
Lotus 1-2-3 Spreadsheet
Spreadsheet Files

How to open 123 file?

Double click the 123 file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .123 extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the 123 extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the 123 file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open 123 files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the 123 file as well. Download Universal File Viewer for your OS.

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