In addition to the generic application/octet-stream content type, you may also encounter attachments that have different subtypes (for example, application/postscript, application/x-macbinary, and application-msword). After downloading an attachment through any of these methods, you must then open the attachment in the appropriate application to view its contents.īefore opening attachments, even from trusted senders, you should follow the guidelines listed in Tips for staying safe online. Follow the same steps as before to create a script and run the program. The next program we write will read a file that contains Base64 encoded data and output the data as text (ascii) to the console. If you are using a workstation-based client, such as Thunderbird or Outlook, the application should be able to extract and download the attachment automatically. Base64 Decode Text Data It turns out going the other direction is not so bad. No matter what kind of file it is, an application/octet-stream attachment is rarely viewable in an email or web client. doc is probably meant to be opened in Microsoft Word. byte byteArray new .util.Base64Util ().decodeToByteArray (s) tools. Image from base64 string which is type of Application/Octet-stream - CodeProject Image from base64 string which is type of Application/Octet-stream 2. #Octet stream base64 .exe#exe extension, for example, indicates it is a Windows or DOS program (executable), while a file ending in. If the attachment has a filename extension associated with it, you may be able to tell what kind of file it is. Typically, it will be an application or a document that must be opened in an application, such as a spreadsheet or word processor. About "application/octet-stream" MIME attachmentsĪ MIME attachment with the content type "application/octet-stream" is a binary file.
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