To make sure our service is as smooth and also as secure as possible, we create a .zip file when you upload multiple files. It gives you the fastest upload possible, and the recipients an equally fast way of downloading the transfer. It doesn't matter what size the files individually are, it's just a fact that when you use WeTransfer to upload more than one file at a time a .zip file will be created.
Usually, our transfers can be opened by double-clicking them in the folder that you downloaded them to, but some transfers (especially those larger than 4GB) have proven to be difficult for the built-in apps of both Windows and Mac. To open them, the program opening the archive needs to support Zip64 archives, and not all the apps do.
Luckily, we have a solution for you! There's a different app to unzip your ginormous .zip file available for both Windows and Mac.
On Windows we recommend using 7Zip, which is free and you'll find here. Please make sure you use version 9.20 or newer.
For Mac The Unarchiver works great - make sure you get the latest version.
After installing one of these apps, please ensure you open your zip file with this program and not the one already installed on your device.
So, long story short; Download the unzipping program that's suitable for your computer and you should be great, no matter how large the transfer is.
Hot tip: It has come to our attention that Windows 10's default extractor doesn't recognise question marks in file names, so it just ignores them and doesn't extract them. Using 7-Zip will solve this problem.