Export underlying data gives only distinct value

Hi Experts,

When I am exporting underlying data, it am getting only value based on X and Y axis.

For instance: Product on X axis and Amount on Y axis. I have underlying data like below

Product A   vendor A  Amount 100

Product A   vendor B  Amount 100

When exporting this data from bar chart, i am getting only one line Porduct A and Amount 100 instead of 2 line item.but the chart and summarized data working fine.

Please gudie me.

Thanks