Click the "Download" button on the top bar of the editing area and select the type of project to download.
Note: Wondershare Mockitt is an online product. The data is stored in the cloud and there is no offline source file. The files you download are all demo files. To edit the same prototype on multiple devices, you can log in to your Wondershare Mockitt account on the new device. If you need to give other people the source file of the project, you can use the project transfer method under the enterprise plan.