This is my file (fixed lengths):

item 1 tire

color black

price 50

item 2 car jack

color blue

price 35

item 3 screwdriver

color red

price 3

My idea was to import it to a (temp) table first and copy the position number (which is on position 20 in the item line) to a new column. Then fill up the position numbers to indicate which property (color, price) belongs to pos 1,2,3. Maybe there is an easier way to import the data.