Thread: POI files compare

Hello,

As new in area of POI's I want to ask something. I have three different POI files that claims are POI's for specific gas station chain in my country (Bulgaria). These are from poiplaza (232 POI's), official site of gas station chain (201 POI's) and one form another free poi site (211 POI's). I have saved these 3 POI's with different names on my HDD. I want to compare them and if it's possible to make one file with compilation of all tree. Do you know any software to do this?'I need comparation line-by-line of POI's... Thanks in advance