@Lara1279
it often happens preparing the CSV file does not come to an end on the Airbnb webserver. Then there is nothing downloaded / stored. I do not know anything about Ipads., but in my windows environment the browser is asking me at each download to provide the download location (this is a browswer-option set by me), otherwise it is stored in the default directory set for downloads.
In a CSV file all fields on each line (row) are separated by commas, it can be imported correctly in almost every speadsheet-software, even in text-processors (creating tables)..