Remove text from excel cell before first occurance of special character

Question

I have string like this -

D:\Project\Feature\branch\Main\Databases\XXX\XXX\XXX\XXX\XXX\XXX\XXX\sp_SampleSP.sql

Want to remove all text before "sp_SampleSP.sql". I have tried with Left formula in excel still not able to find solution.

I want output like this:sp_SampleSP.sql