It’s available for free on the App Store. But you may also use any other app that provides the two key features mentioned above. Otherwise, just download and install the Documents app. In the following demonstration, we’re going to use an app called Documents. Once we have imported the files to the app, we’ll use the app’s export capability to save the files to the Camera Roll location. Using an app that provides the above two features, first we’re going to import the required photos and videos from a computer into the app’s local storage. Ability to export files to Camera Roll location.Ability to import files from the computer (Document Sharing).