IT skills test

Hi all

Previous HEO looking to come back into the CS at an AO position after just under a year out (the grass isn't greener). Part of the recruitment assessments include an IT Skills test however there is no information on what the IT skills test is as the CS website just has the usual SJT, numerical, verbal reasoning etc

During recruitment I have done in the past for admin jobs (analyst roles) within my team it was usually Excel stuff but we always said it was an excel skills test during recruitment. There is literally nothing online from what I can see what an IT skills test actually is. I'm fairly rubbish at excel in timed environments as I struggle with formulas but usually get there eventually with a bit of thinking time.

Does anyone have any ideas so I'm not stressing trying to cram up on vlookups, creating pivot tables etc under pressure unnecessarily