Nickfile

File Format
Name	Nickfile
Ontology	Electronic File Formats E-Mail, newsgroups, and forums Nickfile
Extension(s)	.nk2

A Nickfile (NK2) is used by Microsoft Outlook to store e-mail aliases.

File identification

Files begin with hex bytes 0D F0 AD BA.

Software

• libnk2 - library to access the Microsoft Outlook Nickfile (NK2) format.
• NK2Edit - Window tool to edit AutoComplete files of Microsoft Outlook.
• TestDisk tool to recover/undelete Outlook files.

Links

• Format specification (libnk2 project)
• MAPI definitions (libpst project)
• Forensic Wiki page