fixed : my Mac can’t unzip this file I’ve downloaded

Question :

Someone just sent me a file over WeTransfer. After downloading it turns out to be a .zip-file, but when I double-click on it to unzip as usual, the Archive Utility does start the unzipping but ends in an error each time, claiming the .zip-file is broken.

I’m pretty sure the .zip-file isn’t broken… what can I do ?

 

Answer :

Even though OSX/macOS’s built-in Archive Utility is your default choice for zipping and unzipping files and folders, it turn out not to be the best choice for unzipping. (Especially .zip-files created on Windows PCs seem to be problematic every now and then…)

The solution is simple : just use an other app to unzip.

There are various payed alternatives like Stuffit Expander and WinZIP, but there’s no need to buy an app for this as most FREE apps ( like The Unarchiver ) will do just fine.

To install & use another app to unzip do this :

  • download a FREE zip/unzip-app from the Mac AppStore
  • after installation, lookup the .zip-file on your Mac ( it will probably still be in your Downloads folder or on your Desktop )
  • right-click on the .zip-file’s icon and select “Open with…” from the pop-up menu
  • then choose your zip/unzip-app from the list
  • …and wait for the file to unzip

That’s it ! enjoy 😉

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fixed : need to reinstall an app from the Mac AppStore

Question :

I used to use Microsoft’s SkyDrive without any problems in recent months. Recently Microsoft has changed the name of the app and the service to OneDrive, so I have ‘upgraded’ the app from the Mac AppStore, and it has run okay, but with various connection problems (maybe because I renamed the SkyDrive folder to the new OneDrive folder, so I didn’t have to move or duplicate files and pictures).

But that’s least of my worries. When I try to startup the OneDrive app now, I get an error message, indicating that I need to reinstall the OneDrive app. As this app is downloaded from the Mac AppStore, I looked up OneDrive in there, and it indicated “INSTALLED”, but there’s no option to reinstall…

How do I reinstall this app ?

Answer :

The solution is rather simple, but you might not consider it ‘obvious’ or ‘well documented’ in OSX :

– open the “Applications Folder”

– find the corrupted app you need to reinstall and drag it to the Trash

– open the “(Mac) App Store”-app, and find the app you need to reinstall

– when you’ve found it, you will see that it now indicates “INSTALL”, so just (re)install as usual

…that’s it

Enjoy !

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