WinHKI HKI1 compressed archive file
File type: Archive and compressed file
The .hki1 file extension identifies a compressed archive created by WinHKI Archiver.
An HKI1 file stores compressed archive data for use with WinHKI Archiver on Microsoft Windows.
File type category:
Archive and compressed file
Date updated: September 28, 2026
WinHKI Archiver is a Microsoft Windows compression utility, and an HKI1 file is one of its compressed archive files. The archive can contain files and folders stored in compressed form.
The HKI1 format is generally considered obsolete. WinHKI Archiver is the appropriate software for working with files in this format, although current systems may not have it installed.
Open an HKI1 file with WinHKI Archiver on Microsoft Windows. Use the program's open or extract function to view the archive contents and recover the stored files.
HKI1 files are archive files rather than documents intended for direct format conversion. Extract the contents with WinHKI Archiver, then create a new archive in a currently supported format using another archiving program.
Software applications that can open hki1 files:
Microsoft Windows
Software apps that create hki1 files:
Microsoft Windows
Software apps that extract hki1 files:
Microsoft Windows
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