123 files are incessantly popular. However, a file name containing 123 file extension is problematic for some of the users. They have problems with correct opening of a file with 123 extension. However, it should be remembered that 123 file extension can match one or more types of files. The most popular is Lotus 1-2-3 Spreadsheet Format but if there are others, you will find information concerning them below.
So, it is worth looking close at the problem concerning 123 files and search for its solution.
A list of programs supporting files types with 123 extension can be found below. Applications are sorted according to appropriate operational systems and their popularity.
.123 file extension
Category: 3D&CAD Files
Sunstone Circuits PCB123
If 123 file does not open, firstly, it is worth using files associations built in the Windows system with application that can support them. In order to do it, you should double-click a 123 file icon. A list of programs that probably support such a file will appear. It is enough to choose one of them so that Windows would open a given extension with it. Incorrect file’s association will result in Windows trying to open 123 file with a wrong program all the time even if there is an appropriate application supporting this format on a drive. In this case, it is necessary to perform the above mentioned registry scanning and associations’ repair.
If associations are correct and Windows still cannot open the file, most probably the computer does not have appropriate software supporting files with name containing 123 in their extension. The solution to this problem is very simple. You should buy or download a free (if they exist) application that will allow you to open, browse and edit 123 format (You can also try to find more informations on FileInfo). It is no risk because many paid programs have free test versions enabling to check their functionality.