Apologies for the late late late reply.
First round interview, 45 min of competency based questions such as Why Hay Group, Why Consulting, Why the Reward/Benefits Consulting Sector, Example of working in a team, Example of leading a team, Example of how you build and maintain relationships.
The Excel Test, was a spreadsheet activity. They give you 10 exercises within a spreadsheet which has a data table. Activities such as formatting the headings so they are in bold, calculating AVERAGE/MEDIAN/MODE, to something a lil more technical such as calculating IF formula and making pivot tables.
Second/Final Round, is just an interview with a Consultant and Senior Manager. More of a get to know you type feel, your knowledge of consultancy, what you think you’ll be doing on a day to day basis etc.