**Describe the bug** The GUI is crashing while uploading .csv files to "add C_iss_normal Curve" on Windows 11 operating system. **Screenshots**  [C_iss Curve T_j 25C.csv](https://github.com/upb-lea/transistordatabase/files/8976073/C_iss.Curve.T_j.25C.csv) Desktop: Windows 11