in about a month, I will start working for MBB. Since I have some spare time now and do not have a traditional business background, I am looking for good excel courses that are not too expensive and add the most value with regard to typical entry level tasks. Otherwise, I'd also appreciate an overview of topics that you consider most important, so I can take a look at those on my own as well (I am thinking of Pivot tables, VBA, macros etc.) or even other softwares that are used frequently. I just want to avoid having to spend too much time in the first few weeks acquainting myself with rather basic concepts.
Thanks in advance!