create name badges with same data front and back from Excel list

I am using mail merge to create name badges from data in Excel 2010. I am using an Avery template that has six badges to a sheet. The data is merged first row left right, then second row left right. etc. I would like to have the same data on front and back of each badge. So far I have done it by printing a one-sided sheet of badges, then creating a second worksheet with the data manually reordered so that row one and two are switched, row three and four are switched, etc. Then I merged this second sheet, flip the sheet that I printed and I end up with the data correctly positioned front and back. Here's my question: is there a way to automatically reorder my rows of data, so that the order of pairs of rows are flipped? Thanks for any help.

Let's create a mockup, then you can adjust it from there. Let's create a "Front Spot" column and copy that down, thus:

Name Front Spot
A 1
B 2
C 3
D 4
E 5
F 6
G 7
H 8
I 9
J 10
K 11

Now we need to create a third column "Back Spot." In that column, put this formula and drag it down:

=IF(B2/2=INT(B2/2),B2-1,B2+1)

This just basically switches 1&2, 3&4, etc. Then, you'll want to sort by "Front Spot", and do your merge for the front of the tags. Then, sort by "Back Spot" and do your merge for the backs.

Thanks. Perfect!