Answer: Environment sensing Collector
Explanation:
An environmental monitoring system or collectors is the process which a device uses in monitoring the quality of the environment. These devices or software allows for a realtime monitoring and checking of any parameter required. They are used to monitor and collect data on environmental conditions such as relative humidity, temperature, dew and frost point, differential pressure, pressure, flow, and many more.
It had a huge impact people could use other things than bows and arrows to fight in wars.
XLS would be it, avi contains like sounds and stuff