I have two seperate simple workbooks (Workbook1 and Workbook2). Both workbooks have two columns of data (column A & B). In both workbooks, column A is a list of ID numbers. In Workbook1, Column B is the UserName associated with the ID number in column A. In Workbook2, column B is simply a Usage value irrelevent to my question. First, I would like the macro to insert a new blank column between column A & B in Workbook2 (I would then have three columns, column A = ID, column B is now blank, column C = Usage). Then I would like to compare each of the numbers from column A in Workbook1 with the each of the numbers in column A in Workbook2. If there is a match, copy the corresponding UserName from column B in Workbook1 and insert it next to (in new column B) the matching ID in Workbook2. See attached Workbook1 and Workbook2.
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