Mini-EUSO is a telescope that will observe ultra-violet night-time light emission of Earth. It will watch the atmosphere through a UV transparent window of the International Space Station. The main data stream is composed of regularly sampled exposures integrated on three different time scales: microseconds, milliseconds and seconds. This, accompanied by visible and near infra red images will be sent to Earth on hard drives for analysis. We present here the general data-processing scheme for the mission, including the data format and the tools for quick view and first analysis of the collected data.