How to use my own cross-section

Dear Geant4 experts:
I want to use my own crosse-section for heavy ions dose calculation, but I am confused how to get start:
(1) Dose Geant4 support using user cross-section? my Geant4 version is 11.1.2
(2) In what format should I save my cross-section data so that Geant4 can used it ?
(3) My data only contains ionization cross-section for heavy ion, so how can I used it ?
(4) Are there any examples or materials I can refer to?

Thank you. Best regards.

_Geant4 Version:G4_11.1.2
_Operating System:Rocky 8
CMake Version: