adobe cannot open the file attachment because your pdf file attachment settings do not allow

Acrobat allows to embed ZIP files but it doesn't allows them to be exported (unless you hack the registry as described above).

Embedding a ZIP file is useless since anything placed as an attchment in a PDF file is immediately zipped.

See this article: https://translate.google.fr/translate?sl=fr&tl=en&u=https%3A%2F%2Fwww.abracadabrapdf.net%2Fressources-et-tutos%2Fcreation%2Ffichiers-zip-et-fichiers-pdf%2F

Hi Sureshbabu, 

We are sorry for the trouble. 

++ Adding to the discussion

Attachments represent a potential security risk because they can contain malicious content, open other dangerous files, or launch applications. Acrobat and Acrobat Reader always let you open and save PDF and FDF file attachments. Acrobat and Acrobat Reader recognize certain files, such as those whose names end in .bin, .exe, and .bat, as threats.

Acrobat and Acrobat Reader maintain a white list of file types that can be opened or saved, and a black list of file types that cannot. You are allowed to attach file types that are not on either list. However, when you open or save a file of an “unrecognized” type, you see a dialog box asking whether you trust the file type.

For more information please refer to the help article (https://helpx.adobe.com/in/acrobat/using/attachments-security-risks-reader-acrobat.html)

Let us know how it goes

Regards

Amal

You can drag the attachment to your desktop and un-zip it, but you might not want to after you read this:

https://helpx.adobe.com/acrobat/using/attachments-security-risks-reader-acrobat.html

You need to edit the Registry to allow Zip files to be opened in Acrobat DC. Please follow the steps below:

1. 1) Choose Start > Run.

2) Type “regedit” into the “Open” box and click OK to start the Windows registry editor.

3) Navigate to the following registry key: HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms
4) Double-click the following value: sBuiltInPermList

5) In the Value Data field, locate the file type extension (.zip).

6) Change the number directly after the file type extension to 1

That should do it. Zip files will open after that. 

It seems you are trying to op a .zip file in Acrobat, that wil not work.