1ST File - opening and understanding

Did your computer fail to open a 1ST file? We explain what they are used for and recommend software that we know can open or otherwise handle your .1ST files.

What is a 1ST file?

Files that contain the .1st file extension are most commonly used for the "Read Me" files that are associated with a variety of different software applications. When a user downloads a software product from the Internet, the download usually includes an associated “Read Me” file. This file contains information about the installation and use of the software product. Read Me files are often saved in a plain-text format with the .1st file extension.

The .1st file extension is also used for documenting wizards lists that are used by the Visual FoxPro software development program. This program is a data-centric, object-oriented programming product distributed by Microsoft.

How to open 1ST files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension 1ST for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 3 different 1ST openers which you will find listed below.

Suggest another file format using extension 1ST

While we know of one file format using the .1ST file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .1ST file.

Various viewers for this file format

These apps are known to open certain types of 1ST files. Remember, different programs may use 1ST files for different purposes, so you may need to try out a few of them to be able to open your specific file.

MKEditorMKEditorUser submitted
AkelPadAkelPadUser submitted
X-drivenX-drivenUser submitted
We have not verified any software that we know for certain will work with 1ST-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with 1ST-files. If you know one, please use the 'Suggest a program' link below and tell us about it!