.It
most common cpio archive formats,
.It
-ISO9660 CD images (including RockRidge and Joliet extensions),
-.It
-Zip archives,
+7-Zip archives,
.It
ar archives (including GNU/SysV and BSD extensions),
.It
Microsoft CAB archives,
.It
+ISO9660 CD images (including RockRidge and Joliet extensions),
+.It
LHA archives,
.It
mtree file tree descriptions,
.It
-RAR archives,
+RAR and most RAR5 archives,
.It
-XAR archives.
+WARC archives,
+.It
+XAR archives,
+.It
+Zip archives.
.El
The library automatically detects archives compressed with
-.Xr gzip 1 ,
+.Xr compress 1 ,
.Xr bzip2 1 ,
-.Xr xz 1 ,
+.Xr grzip 1 ,
+.Xr gzip 1 ,
+.Xr lrzip 1 ,
+.Xr lz4 1 ,
.Xr lzip 1 ,
+.Xr lzop 1 ,
+.Xr xz 1 ,
or
-.Xr compress 1
-and decompresses them transparently.
+.Xr zstd 1
+and decompresses them transparently. Decompression of some formats
+requires external decompressor utilities.
It can similarly detect and decode archives processed with
.Xr uuencode 1
or which have an
.It
cpio archives,
.It
-Zip archive,
+7-Zip archives,
+.It
+ar archives,
.It
two different variants of shar archives,
.It
ISO9660 CD images,
.It
-7-Zip archives,
-.It
-ar archives,
-.It
mtree file tree descriptions,
.It
-XAR archives.
+XAR archives,
+.It
+Zip archive.
.El
Pax interchange format is an extension of the tar archive format that
eliminates essentially all of the limitations of historic tar formats