Consider the following case:
- I have a single Excel workbook with 4 sheets in it.
- Each sheet represents one quarter of a year.
- Each sheet contains 2 columns:
- Date
- Revenue
I now want to create a line graph for daily revenue over the whole year.
The X-axis should start at January 1st (first row of the first column of the first sheet) and end at December 31st (last row of the first column of the fourth sheet).
There should be a single line plotting the daily sales over that year on the Y-axis.
I think the most straight forward thing to do is to add a fifth sheet to your workbook that references the cells from the other 4 sheets. Then create your graph from the data on the fifth sheet.
Also, I think you will get better results with an XY Scatter plot, if you use a line chart, the X axis is pre-defined but in your case, you want your X axis to be the date.