File extension ICNS
| File type | Apple Icon Graphic Format |
| Developer | Apple |
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What is a ICNS file?
ICNS is an icon file format used by Mac OS operating system. ICNS files can store icons of the following dimensions (in pixels): 16×16, 32×32, 48×48, 128×128, 256×256, 512×512, and 1024×1024. Operating system can automatically adjust icon size.
Icon images stored in ICNS files support 8-bit alpha channel. Icon of the same theme can use different settings depending on context (for example open and closed folder). ICNS format underwent many changes and with time became sophisticated enough to serve as base for other similar formats.
Program(s) that can open the .ICNS file
Windows
Mac OS
Linux
How to open ICNS files
If you cannot open the ICNS file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports ICNS among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the ICNS file can be found in the table. Now just download and install the appropriate application.
Possible problems with the ICNS format files
The inability to open and operate the ICNS file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Apple Icon Graphic Format file. Below is a list of possible problems.
- Corruption of a ICNS file which is being opened
- Incorrect links to the ICNS file in registry entries.
- Accidental deletion of the description of the ICNS from the Windows registry
- Incomplete installation of an application that supports the ICNS format
- The ICNS file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the ICNS file.
- Drivers of equipment used by the computer to open a ICNS file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the ICNS file should operate with your programs without any problem. If the problem with the ICNS file has not been solved, it may be due to the fact that in this case there is also another rare problem with the ICNS file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
| .adm | Administrator Policy Template Format |
| .adml | Microsoft Administrative Language-specific XML Template Format |
| .admx | Microsoft Administrative XML Template Format |
| .aml | Microsoft Assistance Markup Language |
| .ani | Animated Cursor |
| .ann | Microsoft Windows Help Annotation Format |
| .aos | Archos Signed Encrypted Data Format |
| .asec | Google Android Encrypted Application Package Format |
This extension
can be converted to:
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.ICNS) you have two ways to do it. The first and the easiest one is to right-click on the selected ICNS file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the ICNS file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. ICNS) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.