How do I zip a file ?
On windows you can zip by right clicking the files or folder, selecting "send to" and selecting the “Compressed (zipped) folder” option.
On mac you:
1. Open Finder on your Mac and locate the file that you want to zip.
2. Highlight your file's icon, or hold down the Command key while highlighting to select multiple files.
3. Right-click your highlighted file(s) and select "Compress" to launch Archive Utility. This will automatically zip your files. If you zip a single file, your new archive will retain the original file name with a ".zip" file extension. If you zip multiple files, it will be called "Archive.zip."
4. Change your ZIP name if Archive is insufficient. Retain the ".zip" file extension.