Open 123 files

Full name

Lotus 1-2-3 Spreadsheet Format
Developer

IBM
Popularity

Have you encountered a problem with a 123 file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a 123 file here. In the further part of this page we have added a list of programs that should open your 123 file. It is enough you choose a proper application for your operating system, download and install it.

What is 123 file?

The extension 123 is used by the spreadsheet program Lotus 1-2-3 of the Lotus Office Suite for Spreadsheets.

More info

Lotus 1-2-3 is still used quite often today and is still available despite years of discontinued development with the IBM Lotus Smartsuite. 123 files can also be imported into some other spreadsheet applications. 123 files can be imported depending on the version of older versions of Excel, Excel 2007 and higher are not able to do so.

Programs which can open a 123 file

Windows

Linux

Mac OS

How to open file with 123 extension?

In order to open a file with 123 extension one of the following programs must be installed on user’s system. If a problem with opening 123 file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with 123 files, follow the instructions below.

Install NeoOffice or other program from the list

Most often resolving problems with opening 123 files is very simple. Just install an appropriate program that supports such files. All of the listed programs support 123 files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of 123 files or offer file conversion options, but may not be capable of editing such files.

Set NeoOffice as the default program for opening 123 files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate 123 files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the NeoOffice applications is not on the list, select "Browse" option in order to manually locate the directory where NeoOffice has been installed.

Check the section that lists most common problems with 123 files

Sometimes problems with opening 123 files may not lie with the application itself, but can arise due to other causes, such as:

File data is corrupted
123 files has been not been completely download from the internet (only a part of the data has been downloaded)
Currently used user account hasn’t been granted necessary privileges to open 123 files (should that be the case, please contact your system administrator or IT specialist)
123 file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)