pnbrown

-- Store the .csv file in the same directory as the files you wish to rename
-- Replace 'username' in the path with your own (lines 3 & 10)
set csvFile to "/Users/username/Documents/index.csv"

set csvList to paragraphs of (read csvFile)
set {theID, my text item delimiters} to {my text item delimiters, ","}
repeat with csvLines in csvList
	set {oldName, newName} to text items of csvLines
	tell application "System Events"
		set name of file oldName of folder "/Users/username/Documents/" to newName