Cave Puzzle - Xls Download

hi all, here is a cave - puzzle try solving it!!!

First fill 5 litre and pour it into 7 Lit.
Then again fill 5 litre and pour to 7 lit.
now 3 liter left in 5 liter container!
emply 7 litre and pour 3 litre in it.
again fill 5 litre and pour in 7 liter.
now 7 litre is full and 1 liter left in 5 liter container.
empty 7 litre and pour 1 liter which is left in 5 liter container.
now 1 liter is already in 7 liter container, now fill 5 liter and pour into 7 liter container.
now it is 6 liter in 7 liter container.....
problem is sloved.

Or you can do this
1) that first fill 7 ltrs then transfer it into 5 ltrs.
2) empty 5ltrs jar and transfer balance 2 ltrs from 7 ltrs.
3) then again fill 7ltrs and transfer it into 5ltrs.
4) empty 5 ltrs jar and transfer balance 4 ltrs from 7ltr jar
5) finally fill 7 ltr jar and transfer 1ltr to 5 ltr jar in 7 ltr jar u will have exact 6 ltrs!! :)