Expanded File Archive Formats Supported in Windows 11


Microsoft is continuously developing the Windows 11 operating system, and recently, they announced support for a wide range of archived file formats. Initially, nearly ten additional formats like RAR, 7-Zip, Tar, and GZ were supported.



After installing the optional cumulative update KB5031455 for this month, the number of supported archived file formats increased to 11. These formats now include .rar, .7z, .tar, .tar.gz, .tar.bz2, .tar.zst, .tar.xz, .tgz, .tbz2, .tzst, and .txz.


However, it's important to note that the system still does not support password-protected archived files. On this matter, a spokesperson for Microsoft mentioned that the company currently doesn't have any additional details.


These new formats were added using the open-source libarchive project. This suggests that it may be possible to add more formats in the future, such as LZH and XAR.


To install this optional update (KB5031455), Windows 11 users must do so manually through the Settings app, navigating to Windows Update, pressing 'Check for Updates,' and then downloading and installing the update.


This new capability will become available to Windows 11 users with the upcoming cumulative update set to be released during Patch Tuesday in mid-November.


The announcement of the additional support for archived file formats in Windows 11 was first made during the Build 2023 developer conference in May of last year. Archived file formats like ZIP, 7-Zip, and RAR are widely used in Windows systems, with ZIP being one of the most common choices.


It's worth noting that the new optional update also includes enabling the features of the Moment 4 update, which introduces 72 new features to the Windows 11 operating system. Among these are the updated file explorer, the new backup application, the integrated password manager, and the artificial intelligence program, Copilot.


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