If you haven't entered leading 0's... it's a bit more complicated but
still doable
=right(A1,4) will always grab the year (assuming your data doesn't go
back prior to 1000... If it does, read below
=SUBSTITUTE(LEFT(A1,2),"/","") will return the day and strip out the
"/"s
The tricky part is the month
=SUBSTITUTE(IF(MID(A1,2,1)="/",MID(A1,3,2),MID(A1,4,2)),"/","")
should work... I would suggest, for ease of use, putting these in
three columns and then concatenating (=A2&"/"&A3&"/"&A4) in a fifth
column... then you can always go back and paste values to make it all
permanent (so that your spreadsheet isn't constantly trying to do
these lookups and text slices)
alternatively, if you really wanted to have it in one place, this
should work
=right(A1,4)&"/"&SUBSTITUTE(IF(MID(A1,2,1)="/",MID(A1,3,2),MID(A1,4,2)),"/","")&"/"&SUBSTITUTE(LEFT(A1,2),"/","")
should work
If your genealogy data is prior to 1000, you can use the substitute in
the first section to strip out the "/"s