I'll assume that your records are in columns
A through G, with the numbers in column A.
In column H, use the following formula:-
=INT(A1)+100000*(A1-INT(A1))
(this will turn xyz.ab into ab,xyz.)
Then, sort the data set using column H as the
sort key.
HTH
Try adding a column that contains the two rightmost characters of the column containing the medical record numbers. You can use a formula like, =RIGHT(A2,2), with A2 being the cell containing the number, and "2" being the number of characters the formula returns.
-Ben
Thanks for the fast reply, still uncertain how to enter the formula you gave me, seems it wants to multiply the numbers
Well, you would need to copy the formula down for each of the rows in your sample.
(You could use Ben's solution, too, which is more intuitive.)