The library failed to detect .pfx extension

[sslankesh]

Attach the file for which the detection is inaccurate
You can use the file sharing site of your choice, just ensure the file will not expire or get deleted.

Expected MIME type
application/x-pkcs12

Returned MIME type
application/octet-stream

Version of the library you are using
v1.4.2

Output of go version
go version go1.20.4 darwin/arm64

Additional context

Alternatively, you can fork the project, commit the file with a failing test and reference the commit in the issue.

[gabriel-vasile]

PKCS file format is not supported and it looks like a complicated format to detect.
If anyone is interested in adding detection for it, here are some starting points:

• PDF with the structure of the file
• RFC 7292 PKCS #12: Personal Information Exchange Syntax v1.1
• IANA entry for PKCS
• pkcs12.zip, a pkcs file I generated with openssl