JavaScript
var arr = [['TRUE', 'FALSE', 'VPC_CNTL02_MLOM', 'PORTS OF CNTL02_MLOM', 'leaf', 'vPC', 'AEP_PACO', 'CUPS_40G_ON', 'CDP_OFF', 'LLDP_ON', '', 'LACP_ACTIVE', '', 'GLOBAL_SCOPE', 'MCP_ON', ''],
['TRUE', 'FALSE', 'APIC-INBAND-PG', '', 'leaf', 'Access', 'AAEP-INBAND', '', '', '', '', '', '', '', '', ''],
['TRUE', 'FALSE', 'IPG-VPC-F501-INTERNAL-1371', '', 'leaf', 'vPC', 'AEP-ENFIELD-DC', '10G', 'CDP-Enable', 'LLDP-Enable', '', 'LACP-Active', 'STORMCONTROL-Enable', '', 'MCP-Enable', ''],
['', 'FALSE', '', '', '', '', '', '', '', '', '', '', '', '', '', ''],
['', 'FALSE', '', '', '', '', '', '', '', '', '', '', '', '', '', '']];
for(let p=0;p<arr.length;p++){
arr[p][1] = arr[p][1].toLowerCase();
}
console.log(arr);