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Extract hidden files, PDFs, and documents trapped in Microsoft Outlook winmail.dat attachments
Extract hidden files and documents trapped in Microsoft Outlook winmail.dat attachments
Drag & Drop your winmail.dat attachment here
AnyFileX decodes the Microsoft Transport Neutral Encapsulation Format (TNEF) binary stream in memory and restores your trapped files.
When a sender uses Microsoft Outlook and composes an email formatted in Microsoft Rich Text Format (RTF), Outlook and Exchange use a proprietary format called Transport Neutral Encapsulation Format (TNEF) to encode colors, fonts, and attachments. If the recipient uses a non-Exchange client (like Gmail, Apple Mail, Thunderbird, or Android Mail), the client cannot decode the TNEF stream and simply displays the entire package as an unopenable winmail.dat attachment. AnyFileX parses the binary structure in your browser memory and frees your documents without sharing sensitive contents with external services.
Drag and drop your winmail.dat attachment into the extractor.
AnyFileX extracts the encapsulated files from the binary container.
Save individual files or download everything as a ZIP archive.
Parses binary TNEF attribute streams (attAttachData, attAttachTitle, attBody, attSubject) and reassembles original uncompressed byte arrays.
Unlike legacy online converters that transmit entire files to third-party cloud servers, our architecture prevents network bottlenecks, provides near-instant processing, and eliminates cloud wait queues.
Free browser-based email viewer. Parse and view .eml, .msg, and .mbox email files, extract attachments, inspect forensic RFC 822 routing headers, and verify SPF/DKIM authentication with zero cloud uploads.
Open .eml files directly in your web browser without installing Thunderbird or Outlook. View styled message text, inspect raw MIME headers, and download embedded attachments safely.
Convert Outlook .msg compound binary files into universal RFC 822 .eml format. Preserves full message text, sender details, timestamp headers, and embedded attachments.