The SCIAMACHY Calibration and Extraction Tool SciaL1c is an application provided to the users of the SCIAMACHY Level 1b products. This application allows users to select specific calibrations to apply to Level 1b data, which are in the case of SCIAMACHY defined as not fully calibrated Level 0 channel information in combination with calculated calibration data. The generated Level 1c products are suitable for the user's particular applications.