PubRescue Winmail.dat opener
Got winmail.dat or ATT00001.dat instead of attachments? Get the documents and pictures out of it.
Open email files without Outlook
Read winmail.dat, .eml, .msg, .mbox and Outlook .pst files in your browser, save emails as PDF and get the attachments out. Everything runs on your computer: your email is never uploaded. Free, no signup.
Open your email files
Drop email files here
winmail.dat · .eml · .msg · .mbox · .pst · Free · Your files are never uploaded
Pick your file type
It's the same viewer on every page and it accepts every format. These guides explain each one.
Open winmail.dat on a Mac
When Apple Mail shows winmail.dat: open it in Safari and save the files to Finder.
EML to PDF
Read .eml files and save one or many as PDF, each email on its own page.
MSG to PDF
Open Outlook .msg files without Outlook, download the attachments and save as PDF.
Open .msg on a Mac
No Mac app opens .msg files. Read them in your browser and keep a PDF in Preview.
MBOX viewer
Browse and search a Gmail Takeout, Thunderbird or Apple Mail mailbox, even a multi-gigabyte one.
MBOX to PDF
Pick messages from a mailbox with search and save them as PDF, up to 500 at a time.
PST viewer
Open Outlook .pst and .ost files, even multi-gigabyte ones, and browse every folder. Guides: on a Mac, PST to PDF, PST to MBOX.
Your email stays on your computer
The viewer runs entirely in your browser. Your files are read on your own device and are never uploaded to our server or stored. Only this page and its scripts come from us. PDFs are made by your browser's own print function.
Pictures loaded from the internet are blocked by default, because senders can use them to see when you open an email. You can load them with one click when you trust the message.
Frequently asked questions
Which email files can I open?
winmail.dat (also named ATT00001.dat or .tnef), .eml, .msg, .mbox, and Outlook .pst and .ost files. You can drop several files at once.
Do I need Outlook?
No. The viewer runs in Chrome, Edge, Firefox and Safari on Mac, Windows, Chromebook and Linux, and in mobile browsers.
Are my files uploaded?
No. Everything happens in your browser. Your files are never sent to our server or stored.
Are attachments included when I save as PDF?
Picture attachments are printed in the PDF; other attachments are listed by name and downloaded separately, all at once as a ZIP if you like.
Is it free?
Yes. No signup and no cap on the number of files: very large batches are limited only by your device's memory.
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