Video "How to use"

Will be available in a short future ;)

But, hey! Just drag and drop a file with something like this inside:

10:00:03 -2 3
10:00:04 7 1

and you will see 2 colored lines on a chart with X-time and Y-number axis. Also, you will see created .xlsx sheet if you push the button "Switch view" in the top panel.
All is very simple ;)