The files are unzipped into a dated sub folder of strPath. You can unzip them into strPath without the sub folder by changing the UnZipFile macro as below. Whether I would recommend that is another issue entirely. It rather depends on the object of the exercise.

Note also there is a typo in the UnzipAttachments macro. 
If Not FileExists(strPath) Then MkDir strPath
should be
If Not FolderExists(strPath) Then MkDir strPath
Private Sub UnZipFile(Fname As Variant, strPath As String)
Dim FSO As Object
Dim oShell As Object
Dim FileNameFolder As Variant
'Dim strDate As String
'Const strSubFolder As String = "Unzip"

    'Create the folder name
    'strDate = Format(Now, " dd-mm-yy")
    FileNameFolder = strPath '& strSubFolder & strDate & "\"

    'Make the normal folder in DefPath
    'MkDir FileNameFolder

    'Extract the files into the newly created folder
    Set oShell = CreateObject("Shell.Application")
    oShell.NameSpace(FileNameFolder).CopyHere oShell.NameSpace(Fname).Items
    'MsgBox "You find the unzipped file(s) here: " & FileNameFolder
    On Error Resume Next
    Set FSO = CreateObject("scripting.filesystemobject")
    FSO.DeleteFolder Environ("Temp") & "\Temporary Directory*", True
lbl_Exit:
    Set FSO = Nothing
    Set oShell = Nothing
    Exit Sub
End Sub