I am a qualified Quantity Surveyor working primarily on large scale Energy and Infrastructure Projects ranging from £50-400M and have becoming somewhat of an Excel Wizard over the years and can usually locate, correct and re-format most excel errors or files in no time at all to ensure a better user experience. If you have any queries I would be more than happy to have a look and hopefully offer many potential improvements whilst leaving you to take all the credit from your superiors! I always take the view of trying to ensure sheets are re-usable for other purposes and "future-proofed" so hopefully the single piece of work can be re-used for many moons to come!