Hello Idan,
There is no I/Q data in the SHR files, only sweep data. (Ampl over frequency data). We provide a SHR parser project that will show you the format of the SHR files. This parser project is located in our SDK, which you can download at the following link.
https://relatedcontentdemo.kinsta.cloud/software/signal-hound-software-development-kit-sdk/
Regards,
Andrew