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.IRS File Extension

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File TypeAdobe Save For Web Settings

DeveloperAdobe Systems
3.5 (2 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategorySettings Files


This file is saved in a binary format, which requires a specific program to read its contents.


Settings file created by Adobe Photoshop and Illustrator; contains settings for the "Save for Web" dialog; stores the image format (GIF, JPEG, PNG-8, PNG-24, or WBMP), quality, size, and other optimization options; enables Web designers to save multiple images that have the same formatting and quality specifications.

More Information

You can open the Save for Web dialog in Photoshop CS5 by selecting File → Save for Web & Devices.... Photoshop includes several preinstalled IRS files in the /Presets/Optimized Settings/ directory.

Programs that open IRS files
Adobe Photoshop CC 2015
Adobe Illustrator CC 2015
Adobe Photoshop CC 2015
Adobe Illustrator CC 2015
Updated 2/14/2014

FileInfo - The File Extensions Database

This page contains information about the .IRS extension and its known file associations. Our goal is to help you understand what an IRS file is and how to open it.

The Adobe Save For Web Settings file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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