Yes there is! it is embedded into EMpower.
To obtain the numbers representing the calibration curve and other associated metadata, you just need to:
1. Open the calibration manager in EMpower Manage (Tools>Calibration Viewer),
2. Find the calibration of interest and select it from the list of available calibrations (Note that there are two tabs, one for receiver and one for sensor calibrations)
3. Once the desired calibration is in view, click the button as the top that reads "Export Calibration" which sits on top of the list of calibrations.
4. Select where the calibration should be saved in your computer.
A JSON type of file will be exported, which can be easily read by several programming languages like Matlab or Python. You can find already existing libraries to read JSON files for many programming languages at https://www.json.org/