how to see data (from one xls file) that are constantly changing in another xls
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I have opened xls file on my computer in my firm with some importaint data that I update often (every 15 minutes). My colleegue In other room on the same local network has another xls file open and he would like to see updates in his xls file every time I type in new updates. How can we do that? I don't know how to built macros, it's probably an easy one but..

Every help (made macro, instructions how to do it,...) wanted.

Thanks