PLEASE somebody help me understand....

I find pages a lot that tell you about the .conf, but I just don't get it. I know my way around the computer, but not the programming side.

In the example.conf file in bfgminer 3.10.0 win64 this is what shown

{"pools" : [   {      "url" : "http://url1:8332",      "user" : "user1",      "pass" : "pass1"   },   {      "url" : "http://url2:8344",      "pool-proxy" : "socks5://127.0.0.1:1080",      "user" : "user2",   "pass" : "pass2"   },   {      "url" : "http://url3:8332",      "user" : "user3",      "pass" : "pass3"   }],"intensity" : "d,9,9,9","gpu-engine" : "0-985,0-950,0-960,0-1000","gpu-fan" : "0-85,0-85,0-85,0-85","gpu-memclock" : "860,825,835,875","gpu-powertune" : "20,20,20,20","temp-cutoff" : "95,95,95,95","temp-overheat" : "85,85,85,85","temp-target" : "75,75,75,75","auto-fan" : true,"auto-gpu" : true,"expiry" : 120,"failover-only" : true,"gpu-threads" : 2,"log" : 5,"queue" : 1,"scan-time" : 60,"temp-hysteresis" : 3,"scan-serial" : [   "/dev/ttyUSB0",   "/dev/ttyUSB1",   "/dev/ttyUSB2","/dev/ttyUSB3"],"kernel-path" : "/usr/local/bin"}

I have no idea what this means. Do I need this file? What goes in it?