LOGPARSER #21: Get bytes per extension
This script will give you the amount of bytes sent by each file type, for example pictures, ASPX pages etc. Great if you need to work with size/performance.
EXTRACT_EXTENSION( cs-uri-stem ) AS Extension,
MUL(PROPSUM(sc-bytes),100.0) AS PercentageOfBytes,
Div(Sum(sc-bytes),1024) as AmountOfMbBytes