EXPAND

Expands a compressed file. You can use this command to retrieve one or more 
files from the Setup disks that accompany MS-DOS 6.22. These files are not
usable unless you expand them.

Syntax

    EXPAND [drive:][path]filename [[drive:][path]filename[ ...]]
    destination

If you type the following, EXPAND will prompt you for the location and/or
name you want to give the expanded file:

    EXPAND [drive:][path]filename

If you type the following, EXPAND will prompt you for the location and name
of the compressed file you want to expand, then prompt you for the location
and/or name you want to give the expanded file:

    EXPAND

Parameters

[drive:][path]filename
    Specifies the location and name of a compressed file or files to be
    expanded. You cannot use wildcards (* and ?).

destination
    Specifies the location and/or name of the expanded file or files.
    Destination can consist of a drive letter and colon, a directory name,
    a filename, or a combination. However, you cannot specify a filename
    for destination unless you also specify a single compressed file for
    filename.