I'm having troubles with some charts I'm creating using Excel. Some of the values I'm plotting are too big (2^{64}) to be labeled in the axis. Due to this, Excel automatically puts them in scientific notation. What I should do is to use "labels" for all the numeric values in the axis.

I'm wondering if there is a way to produce a chart without labeling the axis with the actual numbers and make the labels like a, b, c, d, etc., instead of the actual numbers, but using the numbers to plot the graph. Then I can show a chart below defining like this: a= XXXXXXXXXXXXXXXXXXXXXX, b = YYYYYYYYYYYYYY, etc...