7-Zip
was developed for
Windows platforms, and ported by
p7zip
project
team on
Unix platforms.
PeaZip uses the components from those two programs (that are released
under LGPL license as PeaZip) to offer the same GUI frontend to create,
browse, test and extract 7z and ZIP archives under Linux and Windows as
well.

To create a 7Z archive, or add files to an existing 7Z file you can:
- Drag files to a PeaZip instance; if you are browsing
an existing archive you will be asked if you want to add files to the
archive or create a new one
- Select files and folder and use system's context menu
entry Add to archive
- Select files in PeaZip and use Add button or context
menu entry
To extract
7Z or XZ files you can:
To enter password in PeaZip click
in the padlock icon

in the status bar
(in the file/archive browser) or the padlock icon below output address
field in extraction or archiving interfaces, or click Tools > Enter
password / keyfile in main menu, or press F9.
"Keyfile" is optional, leave it blank if you don't want to rely on two
factor authentication - use of keyfile increases security over password
only encryption since also having access to the keyfile will be
required to perform the extraction.
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