Based on the naming convention, is the 13th volume of a split 7-Zip archive. These files are typically used to break down massive datasets or collections into manageable "chunks" for easier storage or transmission.
An interesting feature of this specific format is : N.7z.013
: This file is technically "useless" on its own. To access any data within it, you must have all preceding volumes (001 through 012) and the subsequent ones in the set. Based on the naming convention, is the 13th