There are two methods for uploading a zip file to Resources: drag-and-drop and the upload file functionality. Once you have uploaded the file, you may use the Actions > Expand Zip Archive functionality to unpack the zip file into its component files.
Go to Resources.
Select the Resources tool from the Tool Menu of your site.
From the Actions menu, select Upload Files.
From the Actions drop-down menu to the right of the folder where you want to upload the zip file, select Upload Files.
Drag and drop the zip file from your computer.
Drag the zip file from your computer and drop it in the box marked Drop files here to upload.
This will display a thumbnail of the zip file that will be uploaded.
Or click to switch to a file browser view.
If you prefer to browse for your file instead, select the Drop files here to upload, or click here to browse button to go to the file browser view.
Locate and select the file on your computer, then select Open to upload.
Select Actions, and then select Expand Zip Archive.
From the Actions drop-down menu next to the zip file, select Expand ZIP Archive.
View zip contents in Resources
The zip file is automatically unpacked within the current folder.