Based on the date and prefix, this file is frequently found in:
: Likely a sequence number or timestamp identifier (e.g., the 11th backup or the 11th hour of that day). WP_20150116_11.7z
The filename appears to be a 7-Zip compressed archive containing files typically related to a Windows Phone (WP) backup or a specific media capture from January 16, 2015. Understanding the Filename Components Based on the date and prefix, this file
: Grouped photos or videos from a specific event on that date. : Version-controlled pieces of a project (like a
: Version-controlled pieces of a project (like a "long piece" of a larger dataset) that have been split for easier transfer. To assist you further, could you clarify: Are you trying to open this file and encountering an error? g., parts 1–10)?
Did you find this in a or as part of a larger download? File Naming and Formats - Digital Preservation Coalition