Can it import .CSV files?

[woj]

I want to import my bank account history, it creates reports with CSV or PDF or HTML.

[RodeoClown]

You can import CSV files, but they need to be in a specific format.
You can get more info here: http://www.youneedabudget.com/support/article/csv-file-importing

There are several YNAB CSV file converters that people have created to assist with this, you can look for them by googling if you want.

Cheers,
-Ian