[NV1D3ATD]

Hello dear people of forum samp today I come to pose an error that I have in the map editor and I do not know how to solve it good is the next I was mapping and and I accidentally gave several times to the "IMPORT PASTE" AND AGAIN, to the final and I just cloned the entire map and I've been deleting the objects object x I've been almost a month in that hahaha plan, what happens is that mapping contains 980 lines of objects and it is difficult to know what are cloned and I would like to know if there is a program that can solve
this error that tells me if a line is repeated to erase it or already exists, I do not know if I explain myself, forgive me, my english is from the nasa salu2