To fix this, you will need a third-party tool. The ZIP file’s directory might have been set with limited read/write permissions, keeping you from accessing its contents.

Permission issues – Sometimes, permission issues trigger the error 79 to show.

To resolve this, you need to use the Terminal utility to decompress the ZIP file. Because your Mac’s Archive utility doesn’t allow you to decompress or unzip large files, it shows the error message instead. Large files contained in the ZIP file – Another possible reason why the error 79 appears is that the file you are trying to unzip contains a very large file.In this case, the best solution is to download the file again and make sure you down close the website right away. So, when you try to unzip it, error 79 appears. You might have closed the website before the download process was even completed. Damaged download file – Did you download the file via a web browser? There is a chance that the ZIP file you’re trying to open is damaged.

The error code even comes with the error message “Unable to expand filename.zip (Error 1 – Operation not permitted.”īut what triggers the error to appear? Well, there are many possible reasons. Some Mac OS users have also been complaining that they were unable to expand or unzip ZIP files on their computers because of this annoying error.Īccording to them, it surfaces whenever they double-click on a file they want to unzip. What Is Error 79 on Macs?Ĭannot unzip files on your Mac because of error 79? Relax. What is this error all about? Will it affect an app, folder, user account, or software on your Mac Catalina device? Read on. One of the most notorious errors associated with ZIP files on Macs is the error 79 – inappropriate file type or format. The only problem is that some Mac users encounter errors with it. ZIP extension to send email attachments that are larger than what your email provider allows for sending attachments without getting them rejected because they exceed the maximum attachment size limit.Īlthough the ZIP file format is popular on Windows devices, it is actually supported on Macs. This is because when you unzip file (or extract) all the contents from the compressed archive, they will be restored into their original individual folders for easy access. When you unzip files on your computer, it may look like one long list with different types of files in it. To create a zip file, you need an archive utility such as WinZip or 7-zip. About Outbyte, uninstall instructions, EULA, Privacy Policy.

How to unzip files on mac terminal