(9.0.6926 SP-3). Toolpak is installed and enabled. I think correct function name is as below.
(Binary to Decimal) : BIN.TILL.DEC
(Binary to Hex) : BIN.TILL.HEX
(Decimal to Binary) : DEC.TILL.BIN
(Decimal to Hex) : DEC.TILL.HEX
(Hex to Binary) : HEX.TILL.BIN
(Hex to Decimal) : HEX.TILL.DEC
Thanks for help