Analyze some Data

I have a excel file that contains two sheets with a sets of column (datetime and value) and requires two graph for analysis: - a line graph that will displays both sets on the same graph to compare (same datetime) with a value line for the sets. Horizontal bar would be datetime and two lines for the value (set 1, set 2) - a bar graph that compares the number of entries per day. So stacked columns that displays per day the number of lines on each set for the given days