title: Excel/VBA update file using another file
body: <p>First, I'm sorry for my english but I need help:
  I have a file where a macro add some lines, I have another file which is a copy of the first one, but when lines are added to the first one, i want these new lines on the second file when i open the workbook. So i think i have to use Workbook_open and compare both file to copy new lines to the 2nd file but i really don't have any idea how to do it, can someone help me ? Thank you very much for the help!</p>