In an excel spreadsheet, I have a series of data. Each "batch" of data has 24
cells, but there are only 2 cells out of each 24 whose values I want to plot
on a line graph on a separate sheet in the same file. The first of these
contains a weekly date range and the second contains a percentage. For
example:

4/7/08-4/13/08 44%
3/31/08-4/6/08 39%
3/24/08-3/30/08 51%

Notice that the data is going backwards in time. There are currently 16
batches of data, going back weekly to the beginning of 2008. Each week,
a new batch of data will be added at the top of the sheet.

I have created the line graph, and the Y axis is just fine, correctly
showing 10%, 20%, etc. going upwards from zero, and the values are plotted
correctly. I'm having trouble with the X axis, though. I did figure out how
to get the data to reverse order, so that week 1 in January starts at the
left and moves to the right until it reaches the 16th week in April. However,
I can't figure out how to get the correct labels on the X axis. Right now
they are simply numbers (16, 15, 14,
13, etc. ending at 1) What I want the labels to say are the date ranges. For
instance, the first X axis label should be 12/31/07-1/6/08, the second should
be 1/7/08-1/13/08, etc., until the 16th label, which should be
4/17/08-4/13/08. In other words, the labels on the X axis, moving from left
to right, should be the values in the following cells from the datasheet:
A110, A103, A96, etc. through A10 and finally A3.

I can't figure out how to "tell" Excel to go to those cells to get the
labels for the X axis. I have tried under "Format Axis" but there doesn't
seem to be anywhere for me to enter cell references.

Any help would be appreciated.

Marlene