Comparing two data sets

Hello! I'm trying to compare a data set against the master list to find a match. Once a match is found I want to copy the data in the adjacent columns back to my original list. Here is my code so far.

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The data being compared begins in "A1" (on my data set) and "E2" (in my master list). If A1 doesn't match E2 I want to check it against E3 and so on until a match is found. Once the match is made I want to select columns A - D of my master list and paste it next to the corresponding match in my data set. Hopefully this all makes sense. Thanks