The sheets in SENIB's main file 1NewHouse.ods
These tutorials you easily reach from the question mark button that is at the most top left corner of each sheet in SENIB's main file 1NewHouse.ods. Therefore there is no great reason to watch these tutorials here on the webpage, one after another. A suggestion is to watch each tutorial before inputting data into each sheet. Click on the "blue" menu button to go to any of the tutorials now.