Prefilled downloaded xml option

if I file return offline...

1) if i am filling return first time then I have to go directly to the option of X M L or java utility download....because I am filling return first time and I have no data to be imported...here no need to select the option prefilled downloaded X M L..because there is no question of import of data.

2) if I have filed return in previous years and then I have to download prefilled data to import the data....

is it correct????

another question...
after filling the data in X M L or java I have to save the data and calculate the tax and pay it....then after I should generate the X M L and upload it....

is it correct???