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IM4P file extension

The table below provides useful information about the .im4p file extension. It answers questions such as:

  • What is the .im4p file?
  • What program do I need to open a .im4p file?
  • How can the .im4p file be opened, edited or printed?
  • How can I convert .im4p 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

✅ IMG4 Payload Data

IM4P file is a IMG4 Payload Data. The IMG4 file format is a replacement for the IMG3 file format and is used on devices running a 64-bit processor (A7 or newer) and the Apple Watch. Payload contains the actual content of the file. IMG4 format allows to store payload in a separate file with im4p extension. im4p files are used more often than complete IMG4 files.
IM4P format description not yet available
Category: Data files
Application: Apple iPhone
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
IM4P aliases:
IM4P related links:
IM4P related extensions:
IMG4 Signature Data

Other types of files may also use the .im4p file extension.

🚫 The .im4p file extension is often given incorrectly!

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

imp, m4p

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Impatica Classic Document
TwoNav LAND Calibrated Image Map
DRM Protected AAC File
Sage MAS 90 Program File

🔴 Can't open a .im4p 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 .im4p 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 .im4p file extension, write to us!

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