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 : PowerPoint presentation too large for eMail

Question :

I just made a beautiful PowerPoint presentation which I want to eMail to my friend. When I tried to eMail it, that seemed to work okay at first, but a few moments later I got an error message saying that the eMail could not be sent.

How can I fix this ?

 

Answer :

eMail providers have set a limit to the attachments’ file size per eMail to prevent cluttering the eMail traffic and flooding the recipient’s eMail inbox. For most providers this limit is set to about 5MB of attached files per eMail message. Some providers have expanded this limit to 10MB, and providers like Gmail, Hotmail and Yahoo! even allow you to attach up to 25MB of files to each eMail.

But if your PowerPoint presentation is even larger than 25MB (which might easily occur if you have done your best to make it a beautiful presentation), you will probably do the recipient  a pleasure if you send a smaller file, especially if they are planning on viewing it on a mobile device. The easiest way to ‘shrink’ the size of a presentation is to convert it into a PDF-file. (a PDF-file is even more versatile than a PowerPoint-presentation, as it also can be viewed by people that don’t have PowerPoint software installed)

To convert your PowerPoint-presentation into a PDF-file, do this :

In MacOSX :

– open your presentation in PowerPoint

– then go to “File” in the upper menu bar and select “Print” from the pulldown menu that appears

– in the “Print” menu that appears, adjust everything as desired, then click on the “PDF” button (bottom left)

– in the pulldown menu that appears, choose “Mail PDF” and a new eMail message will be made for you including your Presentation as an attachment

…or you can choose “Save as PDF…” to first save the PDF-version of your presentation to your Mac so you can attach it to any eMail later on

Note : the above procedure also works in other OSX programs like Word, Excel, Pages, Numbers, Keynote, etc.

For Windows users, the general idea is similar but slightly different :

http://office.microsoft.com/en-001/powerpoint-help/save-as-pdf-HA010064992.aspx

If the standard conversion of your PowerPoint into a PDF still turns up with a PDF-file that is too large to eMail, you can adjust the conversion settings, as described here :

How to create even smaller PDFs in OSX

You might also want to try the “Reduce File Size” that is in the “File”-tab of each Office 2011 application (so in Word, PowerPoint and Excel). This option will only reduce the size of the pictures inside the document. The smallest this option can reduce to is 96ppi a.k.a. “Best for sending in e-mail”. This is an interesting option, but converting to PDF usually leads to even more file size reduction.

And if the recipient insists on getting the original PowerPoint-file, you could do as a lot of professionals do, and send your presentation trough the FREE WeTransfer service :

http://www.wetransfer.com

that’s it !

enjoy !

😉

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