Frequency dependent properties setting issue in HFSS(not automatically change)

Hi everyone!

I am using HFSS to simulate a graphene-based antenna,that's what I'v done:
1. Calculate conductivity from kubo's formula in matlab.
2. Export conductivity over frequency into a *.tab file.
3. In HFSS, add a new material with frequency dependent properties,then import the tab file of conductivity mensioned before.

The problems are:
1. After importing the conductivity file, other properties not automatically change based on the improted varying dataset !
2. I can't import dataset with complex formart like: 1.000+i1.025!

Please anybody know about this help me!

Thanks!