Downloaded data not displayed correctly in Excel/CSV format

[kaidrake]

When saved into Excel/CSV format choosing Crosstab, some headers are either redundant or not recorded at the right place, which creates three lines for the same entry. Please see a screenshot below.

More specifically:

• "Accelerators Per Node" is a duplicate, thus can be removed.
• "Avg. Result at System Name" is effectively "Latency (In minutes)".
• "Number Of Nodes" needs to be at the higher level (row 4).

Less critical: the two columns "Accuracy" and "Valid / Invalid" do not contain any data at the moment.

[ShriyaRishab]

@carualejandro - can you please review this?