Upload files or folders to the OneDrive for Business app. To upload files in the OneDrive for Business app: Swipe up from the bottom of the screen or right-click any white space to show an action bar at the bottom of the screen. Select Upload.Select Files. Browse to and select the files you want to upload.pload files or folders to the OneDrive for Business app. To upload files in the OneDrive for Business app: Swipe up from the bottom of the screen or right-click any white space to show an action bar at the bottom of the screen. Select Upload. Select Files.