.1ST file extension - Readme first text document
What is 1st file? How to open 1st files?
File type specification:
The 1st file extension is associated with the text files that are distributed with applications.
The 1st file stores information and instructions for app.
It is viewable in any text editing tool like Windows Notepad, Notepad++ etc.
Updated: December 31, 2024
The default software associated to open 1st file:
Company or developer:
Notepad++ Team
A very popular free text and source code editor. It supports syntax highlighting and syntax folding for C, C++, HTML, ASP, Java, Pascal, PHP, Cobol, CSS etc. Notepad++ also supports plugins to add new features. It is localized to many languages.
List of software applications associated to the .1st file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open 1st file, edit 1st file, convert 1st file, view 1st file, play 1st file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting 1st files.
Software that open 1st file - Readme first text document
Programs supporting the exension 1st on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open 1st file action.
Microsoft Windows:
Main software associated with 1st file by default:
NotePad++ text editor
Other suggested software:
Sublime Text
PSPad
Microsoft Windows NotePad
