File Search dropped .doc files support with model gpt-4o-mini

If a file list contains a file with .doc extention, then uploading a file batch into the vector_store throws an exception and no file is uploaded.
The model used - gpt-4o-mini.
The error looks like the following:
2024-08-22 12:09:49,242 (ERROR ) :: Failed to upload files to vector store with ID ending with “…z50V”: Error code: 400 - {‘error’: {‘message’: ‘Invalid extension doc. Supported formats: “c”, “cpp”, “css”, “csv”, “docx”, “gif”, “html”, “java”, “jpeg”, “jpg”, “js”, “json”, “md”, “pdf”, “php”, “png”, “pptx”, “py”, “rb”, “tar”, “tex”, “ts”, “txt”, “webp”, “xlsx”, “xml”, “zip”’, ‘type’: ‘invalid_request_error’, ‘param’: None, ‘code’: None}}
If I am trying to add a.doc file via the playground, it fails with the same error message “unsupported file extention”.
It seems to be a bug.
And btw, how can I get the list of supported file extentions?