I have a spreadsheet with a column holding all resetrates of a floating loan which a are separated by the ; sign .
A cell in this column could look like this

5.054;4.661;4.034;3.486;3.313334;2.4551;2.18923

For valuation purposes I need the last two resetrates to be in a separate column. Doing a text to columns is not an option since not all loans have an equal number of resetrates . Using the RIGHt and MID function also doesn't seem to be cutting it since the number digits of the resetrate is not always the same. Is there any other way in which i can pick up the last rate and the one before last and put them in separate columns by just using a formula??

I'd take a look at using the InStr function (if that works in Excel, most things don't)
That'd be my starting point.

I forgot to mention that I also have a column telling me how many resets there are so I also already know how many semi column signs there are in a cell (number of resets -1)

The InStr functions supports that methinks... If memory serves you can specify which instance of the match you want to return...
InStr or SubStr are the ones to look at

Howdy. For a formula approach, assume your data is in cell C3, then use:

=RIGHT(C3,LEN(C3)-FIND("*",SUBSTITUTE(C3,";","*",LEN(C3)-LEN(SUBSTITUTE(C3,";","")))))

Note: this makes it a text value, not number.

That formula would be for the last value. With a little ingenuity and the same formula, you can determine how to get the second last value.