filetype pptx not being detected

[huineng]

when doing a simple test on my devcontainer (python 3.11)

with open('test.pptx', 'rb') as f:
    kind = filetype.guess(f.read())
    print(kind.mime, kind.extension)

it returns application/zip zip

converter.convert('test.pptx')

Input document test.pptx does not match any allowed format.
File format not allowed: test.pptx

it works from a remote location because there the content type is specified, but not from a local import

ps pptx is essentially a zip file

latest versions i'm using docling==2.8.3

Thanks

ps2 your documentation on the installation for Tesseract needs some update, that doesn't work, i found the way to do it (much later) in the custom conversion example

[carmelomigliore]

I have the same problem, probably it's related to this: h2non/filetype.py#171
the 'file' utility correctly detect the application/vnd.openxmlformats-officedocument.presentationml.presentation mimetype on the same document