Вы можете попробовать:
=TEXT(MID(A1,(FIND(" ",A1,FIND(" ",A1,1)+1)+1),(FIND(",",A1,FIND(",",A1,1)+1))-(FIND(" ",A1,FIND(" ",A1,1)+1)+1)) & "/" & MID(A1,FIND(",",A1,1)+2,(FIND(" ",A1,FIND(" ",A1,1)+1))-(FIND(" ",A1,1)+1)) & "/" & MID(A1,FIND(",",A1,FIND(",",A1,1)+1)+2,((FIND("-",A1,1))-(FIND(",",A1,FIND(",",A1,1)+1))-3)),"dd/mm/yyyy")