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1ST File - What is a .1st file and how do I open it?

Learn about .1ST files and view a list of programs that open them.

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Overview

What is a 1ST file? Readme text file sometimes bundled with applications; contains important information or instructions for operating the software; uses the "1st" extension so that users know to open the readme first before running the application for the first time.

More Information 1ST files are not as commonly used as the filenames README or readme.txt .

Popularity3.5/5

96 votes

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VerifiedVerified by FileInfo.com The FileInfo.com team has independently researched the Readme file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified. If you would like to suggest any additions or updates to this page, please let us know .

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Popularity3.5 | 96 Votes

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.1ST File Extension

Readme File

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What is a 1ST file?

Readme text file sometimes bundled with applications; contains important information or instructions for operating the software; uses the "1st" extension so that users know to open the readme first before running the application for the first time.

More Information

1ST files are not as commonly used as the filenames README or readme.txt .

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Programs that open 1ST files

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X

Windows

Microsoft Notepad

Included with OS

Other text editor

Category: Text Files

Updated: October 17, 2011

FAQ

What is a 1ST file?↓
Readme text file sometimes bundled with applications; contains important information or instructions for operating the software; uses the "1st" extension so that users know to open the readme first before running the application for the first time.

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