Vid-20180110-wa0031.7z -

: The date the file was processed by WhatsApp (January 10, 2018). WA : Indicates the source application is WhatsApp.

: The file extension for a 7-Zip compressed archive. This is not a standard WhatsApp format, suggesting the file was manually compressed after being saved. 2. File Technical Details WhatsApp media file naming convention - Forensic Focus VID-20180110-WA0031.7z

Based on the file naming convention, appears to be a compressed archive containing a video file originally sent or received via WhatsApp on January 10, 2018. 1. Naming Convention Analysis The filename follows the standard WhatsApp media structure: VID : Identifies the file as a video. : The date the file was processed by

: A sequential or unique identifier assigned by the app for that specific day. VID-20180110-WA0031.7z