Horizontal Sort

Hi,

I have a set of data that is over 2500 rows. It contains an ID column and then multiple tags associated with that ID that need to be sorted horizontally.
As comma separated it would appear as the example below.

Example:
1, ACC.d, FAS.d, 2013-2014, GRD.d
2, 2013-2014
3, MTJ.w, FAS.d, ACC.d
4, GRD.d, ACC.d

I'd like to sort these horizontally for each row and maintain the spacing if possible. Is there a function/macro I can use? I am not very familiar with Macros, so the more detailed, the better...

thanks
jg