Website Administrator only.
The Upload Asset tool allows you to import a batch of images or files from a ZIP archive to create a backup copy of your entire website. If you upload HTML files, they are treated as files (items of the File base type) instead of web pages, and cannot be edited.
Note: When you import a ZIP file, it must contain both the Live and Draft versions of every image and file.
Use the Download Static Version of Website tool to back up your live site (also know as a static site) as a ZIP file. Items that are in draft form are not backed up. Also, pages in members-only folders with restricted access (constituents or members only) will be replaced with the alert, This page is not currently available.
Note: A known issue for Download Static Version of Website tool can prevent all files from being saved. Carefully check your files after using this tool to ensure the content is as you expect.