The epoch is extracted from the URL (and the folder structure I've used to store the files on disk). It represents the point in time that the file starts from e.g. 2013/01/14/00h_ticks.bi5 has the epoch of midnight on 14 January 2013.
2013/01/14/00h_ticks.bi5 has the epoch of midnight on 14 February 2013.
The epoch is extracted from the URL (and the folder structure I've used to store the files on disk). It represents the point in time that the file starts from e.g. 2013/01/14/00h_ticks.bi5 has the epoch of midnight on 14 January 2013.2013/01/14/00h_ticks.bi5 has the epoch of midnight on 14 February 2013.