can't unpack ddsx file

[Schott090]

I tried to use the latest version to unpack ddsx and it give me this error

" File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\cx_Freeze\initscripts_startup_.py", line 40, in run
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\cx_Freeze\initscripts\Console.py", line 33, in run
File "src/wt_tools/ddsx_unpack.py", line 143, in
File "src/wt_tools/ddsx_unpack.py", line 137, in main
File "src/wt_tools/ddsx_unpack.py", line 110, in unpack_file
File "src/wt_tools/ddsx_unpack.py", line 52, in unpack
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 263, in parse
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 281, in parse_stream
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 286, in _parsereport
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 1898, in _parse
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 286, in _parsereport
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 2378, in _parse
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 286, in _parsereport
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 1898, in _parse
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 286, in _parsereport
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 2378, in _parse
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 286, in _parsereport
File "C:\hostedtoolcache\windows\Python\3.7.8\x64\lib\site-packages\construct\core.py", line 2435, in _parse
construct.core.ConstError: parsing expected b'DDSx' but parsed b'DDS ' "