I think we will take it from choroba approach mine was quite different I started from here by snatching out the hex and got stuck there: 

perl -pe 's/([[:xdigit:]]{1,2}:){23}[[:xdigit:]]{1,2}/$HEX/g;' testing
+.csv

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In reply to Re^2: Replace a Hex Value in Column by ktham33n
in thread Replace a Hex Value in Column by ktham33n

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