In Arduino IDE menu, go to Sketch -> Include Libray -> Add .ZIP Library... and then select the zipped library. After including it, you can add the include headers to your current sketch with Sketch -> ...
The INA3221 is a 3 channel voltage and current sensor, which work with I2C. The INA3221 is a 3 channel measuring device to measure voltage. Derived from that voltage and a given shunt, the library ...