How to Change Read Only Files or Folders. Making a file read-only in Windows means you or a colleague are less likely to delete or change it accidentally.

Learn how to make files or folders Hidden or Read only on Windows PC. When you set a file as Hidden, you cannot see it. Read-only files do not allow changes to be saved.

A QuickBooks file that's set to read-only will open in QuickBooks but you won't be able to edit it. Often files appear as read-only because of the type of media they are stored on.

Sharing files is relatively easy from the web or from any Apple device, and shares can be set to read-only or editable. There's no password protection and no way to set an expiry date on shared links.