Not sure I understand the ask. This would convert an alphanumeric into binary; in this instance whatever is in cell A
Code:
=TEXTJOIN("",TRUE,DEC2BIN(CODE(MID(A1,ROW(INDIRECT("1:" & LEN(A1))),1))))
Ensure you create an array, so hold down Shift + CTRL when hitting Enter.
Converts each alphanumeric in cell A1 into binary.
Code:
darkgen
1100100110000111100101101011110011111001011101110
Requires Office365; Gleaned from another site.
E: eh after some verification; I'm not convinced it does even that!
E: it's omitting the preceding zeroes in each block!