I hate to be the bearer of bad news, but unfortunately, FL Studio Mobile cannot open FLP files. These are project files created in the desktop version of FL Studio and are incompatible with the mobile app. Instead, FL Studio Mobile uses its file format, FLM, to save projects. Before you get too disappointed, it's important to note that while the project files are not interchangeable, you can still transfer your projects between devices. You can export your project from FL Studio Mobile as a WAV or MP3 file and import it into the desktop version of FL Studio. You can also use cloud services like Dropbox, Google Drive, OneDrive, etc., to transfer your projects between devices. It's worth noting that FL Studio Mobile and FL Studio (desktop version) are different software with different features and capabilities, so the project files are not interchangeable. But with some work, you can still access your projects on your mobile and desktop devices.