Filename

Key Filename in Buffer Setup refers to the name of the destination file where the feeds downloaded by the Live Feeds Engine are stored as soon as they are received.
In the special case where the Single File entry indicates storage over multiple files, the name of each file equals the concatenation of the text here and the respective ticker symbol.
If a destination file does not exist, it will be created.
Otherwise, all new feeds will be appended at the bottom of the data that already exist in the respective file.