Home : File Types : 1ST File

.1ST File Extension

File TypeReadme File

3.6 (88 Votes)
CategoryText Files

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

Included with OS
Updated 10/17/2011

About 1ST Files

Our goal is to help you understand what a file with a *.1st suffix is and how to open it.

The Readme file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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