A daily updated filename extension database!

I4D file extension

The table below provides useful information about the .i4d file extension. It answers questions such as:

  • What is the .i4d file?
  • What program do I need to open a .i4d file?
  • How can the .i4d file be opened, edited or printed?
  • How can I convert .i4d files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Inform4 Document

I4D file is an Inform4 Document. Inform4 is a tree structured multi-text outline editor with file archive and HTML export. Ideas for use are hand-books, readme's, last minute descriptions, on-the-fly web pages, text and file archives etc.
I4D format description not yet available
Category: Document files
Application: Inform4
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
I4D aliases:
I4D related links:
I4D related extensions:

Other types of files may also use the .i4d file extension.

🚫 The .i4d file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

4d, id, id4, ied, ird, itd, l4d

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Lotus Notes User ID File
4DIM Model Data
IRIT 3D Data
Maxon Cinema 4D Layout Data
ISIS Event Data File
Infini-D Scene
3K3Y IRD File
Crestron SIMPL IR Resource Data
SDL Intermediate Translation Document

🔴 Can't open a .i4d file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .i4d file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .i4d file extension, write to us!

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