Files with the .ICNS format normally stores the icon image files. Such files are utilized by the Mac OS X operating system. This format supports both 1 as well as 8 bit alpha channel along with multiple image stages that comprise of the folder icons in both open and closed states.
Every .ICNS file is linked with its corresponding program. The file acts as a container file and saves individual resources and icons within the container. The user’s Operating system can then scale the contained icons within the files to adjust itself to the appropriate display size.
The following list contains programs grouped by 3 operating systems that support ICNS files. ICNS files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.
Being unable to open files with ICNS extension can be have various origins. On the bright side, the most encountered issues pertaining to Mac OS X Icon Resource Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.
The most common reason for such problems is the lack of proper applications that supports ICNS files installed on the system. The most obvious solution is to download and install IconWorkshop or one to the listed programs: Apple Preview, IcoFX, Apple Icon Composer. The full list of programs grouped by operating systems can be found above. If you want to download IconWorkshop installer in the most secured manner, we suggest you visit Axialis Software website and download from their official repositories.
If the problems with opening ICNS files still occur even after installing IconWorkshop, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of IconWorkshop is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of IconWorkshop installed, it may not support ICNS format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using IconWorkshop.
If the issue has not been solved in the previous step, you should associate ICNS files with latest version of IconWorkshop you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent
The procedure to change the default program in Windows
The procedure to change the default program in Mac OS
Should the problem still occur after following steps 1-3, check if the ICNS file is valid. Problems with opening the file may arise due to various reasons.
Should it happed that the ICNS is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the ICNS file is indeed infected follow the instructions below.
If you obtained the problematic ICNS file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with ICNS extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.
There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Mac OS X Icon Resource Format file again.
If the systems has insufficient resources to open ICNS files, try closing all currently running applications and try again.
Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Mac OS X Icon Resource Format file. It may be the case that the ICNS files work properly with updated software that addresses some system bugs.
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