I need to read in a CSV file and split it up into a new file every 65536 lines.  The reason is because we are using an older version of Excel that can only view 65536 lines at a time.  Please also note that we do NOT have Excel installed on the PC where the script will run. Here is what I have so far: #include <file.au3> $sFilePath = @ScriptDir & "\testFile.csv" If NOT FileRead($sFilePath) Then ConsoleWrite("DEBUG: Error: " & @error & @CRLF) Exit