Opening IS Files

The IS file type is primarily associated with Inno Setup.

IS	File extension: IS
	File type:	script file

What is an IS file?

IS files mostly belong to Inno Setup. Usage of IS Files:

Installer Script: These files work as scripts for software installers. They are saved in UTF-16 (LE) and include commands that Inno Setup uses to control an installation.

Image/Game Script: Some IS files function as an image format linked to Adobe ImageReady or as script files for game engines like the Infinity Engine.

How to Open and View:
FilExt.com tip: If the file is an installer script, open it with any text editor (for example, Notepad or Notepad++) ensuring the encoding is set to UTF-16. For image or game-related IS files, use Adobe ImageReady or the proper game asset tool to view the content.

How to open an IS file

You need a suitable software like Inno Setup to open an IS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your IS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a IS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online IS Text Viewer

Choose your .is file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

IS file extension format:

A file format defines how the data in the file is structured. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. When there is a problem with a file, the first step to solving it is to determine the file format. Our analysis of the IS files produces the following result:

IS is rarely used as a file extension and includes a lot of different file formats for different programs. The file formats most commonly found in IS files are:

• 15% of all IS files internally utilize the UTF-16 (LE) file format. UTF-16 (LE) is an character encoding system for Unicode. UTF-16 files can be viewed in any modern text editor. These files start with the two bytes FF FE, the so called byte order mark (BOM). These files contain neither text nor words, but only data. A typical file size is 14 KB. Certain words are almost always found in the files, such as 0BE3E5E5D5DA6D8BA079BF4F1EA6724B9CBABEDFF13C4CC1B63712CD8087748F0C3412486C2D86B7EB0F8626166. An example of a file name is SCRIPT0001.IS.
• 8% of all IS files use the same file format, which can be identified by the letters "IBS" at the beginning. They consist of illegible, cryptic characters. The files are 1 KB to 16 KB in size, with a median of 11 KB. Certain words are almost always found in the files, such as IHDR.

All other IS files (77%) have no consistent format. The category is paws, garden, backup or grid. Drag & drop your file here to see the file format and a preview of your IS file!