下载winmail.dat文件。 打开winmail.dat查看器。 单击浏览。 选择文件。 单击打开。 单击Start（开始）。 单击messagebody链接。 打开下载的RTF文件。

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You can usually do this by opening the email in which the winmail.dat file is stored and clicking the download button next to or on the file's preview. You may have to select a save location or confirm the download before the winmail.dat file will download. Go to https://www.winmaildat.com/ in your computer's web browser. This service will translate your winmail.dat file into a readable Rich Text Format (RTF) document which can be opened in Microsoft Word (or, if you don't have Word, a built-in computer program like WordPad or TextEdit). It's a grey button near the top of the page. A File Explorer (Windows) or Finder (Mac) window will open. Go to the location of the downloaded winmail.dat file, then click it once to select it. This is in the bottom-right corner of the window. Your winmail.dat file will be uploaded to the website. It's near the middle of the page. The website will begin turning your winmail.dat file into a Rich Text Format (RTF) document. This link is at the top of the page. Doing so prompts the RTF file to begin downloading onto your computer. Again, you may need to select a save location or confirm the download before proceeding. Double-click the RTF file to open it in your computer's default RTF reader. Once the RTF file opens, you'll be able to see the winmail.dat file's text.