Please make sure the file(s) you will be uploading are in a compressed .zip format.
How to compress files on a Windows PC
- Locate the file or folder that you want to compress.
- Right-click the file or folder, point to Send To, and then click Compressed (zipped) Folder.
A new compressed folder is created. To rename it, right-click the folder, click Rename, and then type the new name.
How to compress files on a MAC
- Locate the file or folder you want to compress. You can select multiple files and folders by holding down the Shift key (for multiple items) or the Command key (for several individual items) and clicking.
- After you’ve selected the files and folders, right click on them, and then select Compress.