EVTX File Documentation


Overview

Feature Value
File Format EVTX (Windows 7 Event Log File)
File Extension .evtx
MIME Type application/octet-stream
Developer Microsoft
Introduced in Windows Vista
File Signature (Hex) 45 6C 66 46 69 6C 65 00
Endianness Little Endian
File structure XML-based, binary file format
Primary Purpose Logging Windows events
Accessed By Event Viewer
Forensic Importance High
Can contain Informational, Warning, Error events
Can be exported as XML, CSV, TXT
Compression Used No
Default Location (System) %SystemRoot%System32winevtLogs
Default Location (Applications) %SystemRoot%System32winevtLogsApplication.evtx
Security Log Location %SystemRoot%System32winevtLogsSecurity.evtx
Maximum File Size Configurable, default 20MB
Encryption No
Archiving Capability Yes
Usability Forensic analysis, System diagnostics, Security auditing