Having received the next letter by e-mail, any user may face the situation when some information in this letter is missing and in the same time there is winmail.dat is in the list of files. This file can be downloaded to your computer without problems, but you will not be able to open it with standard tools. At the same time, a winmail.dat may contain a very important information, because, in fact, this file can be called a data archive of some kind. In this article we will find out why winmail.dat may appear in the list of files and what is the best way to open it.
Winmail.dat in the letter: what is this file
If the sender sends his message using Microsoft Outlook, Express or Exchange (or other less common third-party programs), some of the information in it can be sent in an attachment named winmail.dat. Also on the Internet you may meet another name for this file – it can be called TNEF, which is the abbreviation for Transport Neutral Encapsulation Format.
Hello fellows, How to merge dat files in mac? I have 12.dat files in my computer with mac operating system and was confused on the proper software needed to merge those 12 files as one. One more thing, can I zip a file using mac operating system? I need some help from you experts. Regards, Chloe Chylly. There are free converters that allow you to upload the winmail.dat file to be read on site, and the Mac App Store offers a conversion app (TNEF’s Enough) that will allow you to open the files on your Desktop. Making the Choice. It’s a matter of personal convenience which method to use. The Winmail.dat Reader free online version was developed for Mac, Linux, iPad, iPhone, Android, Blackberry (and so on) users who received Winmail.dat attachments files sent by MS Outlook and MS Exchange. For Windows users we HIGHLY recommend using the desktop version of the Winmail.dat Reader! Click here to go to the Download page. For Android users we HIGHLY. DAT File Platform Notes Version Release Date File Size; DAT Package For Use with McAfee ePO: Linux and Mac: ENS for Mac and ENS for Linux 10.7.0 and later only use the MED DAT files. The versions prior to 10.7.0 continue to use the V2 DAT. 4386:: 78.9: Download V3 Virus Definition Updates (DATs).
Outlook Data Files (.pst) created by using Outlook 2013 or Outlook 2016 are typically saved on your computer in the DocumentsOutlook Files folder. If you upgraded to Outlook on a computer that already had data files that were created in Microsoft Office Outlook 2007 or earlier, these files are saved in a different location in a hidden folder at.
This winmail.dat file mainly appears because when the sender was using his application to send the message, he applied formatting that is not supported by the program (for example, the browser) that will be used by recipient to view this message. At the same time, the letter from the sender left in the RTF format. As a result, the recipient will find only some text and attached supported materials from the sent message, but the formatting elements (font, color), vcf contact cards, icl calendar events and some other elements will be placed in a file named winmail.dat.
How to open the winmail.dat file
Having received the winmail.dat file in the letter, any user can open it, if necessary, even without having an Outlook e-mail client (or anything like it, supporting operations with this file) on his computer. It is possible to use online services or special small utilities to view information in the winmail.dat file.
Using online services
There are many online services that will allow you to easily extract information from the winmail.dat file. One of the proven and convenient services is Winmaildat.com. It’s interface is not overloaded with unnecessary features, you can work with it for free, and it copes with it’s main task – opening the winmail.dat file – without any problems. This service operates as follows:
- First you need to download the winmail.dat file from the letter that you received;
- Next go to the Winmaildat.com website and click “Choose a file”. In the window that opens, specify the path to the winmail.dat file downloaded on your computer;
- When the file is downloaded, click “Start” and wait. Waiting time depends on the file size and connection speed;
- After a while the page will be updated, and you can download all necessary files to your computer. It is worth noting that the online service in question does not work with files that weigh more than 10 MB.
Using utilities
There are several programs to view winmail.dat files, created for various operating systems, including mobile ones:
- Windows. If you have a permanent need to open winmail.dat files, it is advisable to install a special application that performs this function on your computer, instead of using the online service. The program called Winmail Reader handles the task of viewing the winmail.dat files without any troubles. You can download it for free from the official website. It is worth noting that, unlike the online service mentioned above, this program can work with files larger than 10 MB;
- MacOS. Mac App Store has a Winmail.dat Viewer application. It is called Letter Opener 4 and it also serves to open winmail.dat files. This program is extremely simple and free. It has a very convenient content preview function;
- iOS and Android. You can also easily find programs for mobile operating systems that will allow you to open winline.dat files. Winmail.dat Opener is an extremely simple and convenient application for Android, and at iOS-devices you can use Winmail DAT File Viewer.
It is not recommended to download winmail.dat files, that cause suspicion and are executable, that is, they have the format .exe, .cmd and others.
by Christine Smith • 2020-10-28 17:35:15 • Proven solutions
Sometimes you can't open a movie on the avseq.dat file or can't import video from a VCD or AVSEQ01.DAT file into FCPX. To quickly solve your problem, you need to convert DAT videos to MP4, WMV, MOV (QuickTime), and most other popular, standard video formats on Windows and Mac. This article will recommend an excellent DAT video converter also the online and free methods to convert DAT to MP4 easily and quickly.
Part 1. The best method to convert DAT to MP4/WMV/MOV (QuickTime).
To convert DAT to MP4/MOV/WMV or other standard formats, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) will be your best choice. It supports 1000+ video formats for conversion, and you can customize video format for devices and specific platforms such as YouTube, Facebook, and Twitter. This DAT converter allows you to edit DAT files with trimming, cropping, rotating, adding watermarks, and more others. Other functions like compressing video size, transferring DAT files to the phone, making GIFs are supported. Read the following parts to know more features about it and the detailed steps.
Wondershare UniConverter - Powerful DAT video converter for Windows/Mac (Mac OS Catalina included)
- Convert DAT to MOV, MP4, WMV, AVI, and more SD, 3D, and HD video formats on Windows/Mac
- Convert DAT to mobile phones, QuickTime, Final Cut Pro, and iMovie with the optimized presets
- Personalize DAT video like a professional video editing tool by trimming, cropping, adding a subtitle
- Convert DAT videos to a smaller size with super fast speed and no quality loss
- Burn DAT files to DVD/Blu-ray disc with free menu templates
- Transfer DAT files to iPhone/Android devices directly via a USB cable
- Additional toolbox with functions of Fixing Video Metadata, GIF Maker, Screen Recorder, Video Download, etc.
- Supported OS: Windows 10/8/7/XP/Vista, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
Steps to convert DAT to MP4/MOV/WMV easily and quickly on Windows/Mac.
The tutorial below will tell you how to convert DAT to MP4 or MOV for Windows (Windows 10 included). If you are looking for how to convert DAT to MP4 or MOV for Mac (Catalina included), download the Mac version, and follow the similar steps below.
Step 1 Import DAT videos to this DAT video converter.
Open Wondershare DAT video converter on your PC/Mac, and go to the Video Converter section by default. Click the Add Files button to add your DAT files for conversion. Drag and drop the DAT files to the video converter can also import videos.
(Optional) At this time, if you need to join all imported files together into a single file, just enable the Merge All Files option at the bottom of the interface.
Step 2 Choose an output format like MP4, WMV, MOV(QuickTime), etc.
Open this app's output format list by hitting the drop-down icon of Output Format. And then select any one of the video formats or optimized presetting you want.
If necessary, you can also set the customized video format with special parameters like Resolution, Bit Rate, Frame Rate, and more. To do these, just hit the Format Settings icon to open its setting window, select the settings as you wish, and then click Create to save them.
Step 3 Start DAT video conversion.
Convert DAT files to the format you've selected by pressing the Start All button on the lower-right corner of this app's interface. Next, you can see the conversion progress bar in this app's panel, which shows you the remaining time as well.
When the conversion is finished, you can access the output folder of this DAT Video Converter by clicking the Finished tab and then click the Open icon. Just enjoy the output files. If you want to play them on some device, an extra step is to transfer the output files to your device. Learn more about file transfer with this DAT converter.
Part 2. Other 5 DAT to MP4 converters for Windows/Mac.
DAT is a common file extension that is used to store video files on a DVD. However, since DVDs have become an outdated trend in 2020, many people want to know the best way to convert DAT to MP4 or other formats so that they can play the video files on any device. To make your job easier, here is a list of the best video converters you can use to convert DAT files to MP4 videos.
1. Wondershare Free Video Converter
Free Video Converter from Wondershare is an excellent program that allows converting an array of videos and audio files to formats that are compatible with iOS devices. The APEXTRANS technology of the software makes the conversion process super fast and high-quality. It also comes loaded with in-program editing features like rotating, merging, cropping, trimming, and others. YouTube videos can also be downloaded for offline playback and can then be converted to other needed formats. The free version has a very similar interface and steps with Wondershare UniConverter (originally Wondershare Video Converter Ultimate) we mentioned in Part 1.
Steps to convert DAT to MP4 using Wondershare Free Video Converter:
Step 1: Download, install and launch Wondershare Free Video Converter on your PC/Mac. From the Convert window, hit the Add Files button to browse and add DAT file(s) from your computer.
Step 2: Once the DAT file is added, click the drop-down menu next to the Convert all files to option to open the formats list, and choose one format you want to convert, such as MP4.
Step 3: Finally, click on the Convert All button to convert DAT to MP4 or other selected formats. After the converting process is completed, the finished message will be displayed.
Pros:
● Provide an array of video and audio formats for conversion for free
● Support batch processing for converting multiple files at a time
● Features in-program editing functions
● Other functions related to video such as Video Download, Burn DVD, Video Transfer are available
Cons:
● You have a watermark on the output video like most free converters you can find
● Fewer functions than Wondershare UniConverter (originally Wondershare Video Converter Ultimate)
2. DVDFab 11
One of the most convenient ways to convert DAT files to MP4 is to use DVDFab 11. It is a feature-rich video converter that can be used to convert videos from one format to the other. The tool supports a wide range of video formats, including the old-school DAT format, and makes it easier to convert videos instantly.
Here's how to convert DAT to MP4 using DVDFab 11.
Step 1: Launch the software and click the + icon to add DAT files that you want to convert.
Step 2: Now, tap the Convert button and choose MP4 as the output format.
Step 3: Select a destination folder for the video and click Start to initiate the conversion process.
Pros:
It can convert videos as well as audio files to different formats
It supports 4K video conversion
Cons:
The user interface isn't as straightforward as you'd expect
3. DAT to MP4 Converter
DAT to MP4 converter is an exclusive video converter that's specifically designed to convert DAT files to MP4 video format. However, you can also use the tool to convert a DAT file into other popular video formats, including AVI, AVCHD, MOV, etc. If you're looking for an easy-to-use solution, DAT to MP4 converter is the right answer.
Here's the step-by-step process to convert a DAT file into MP4 using DAT to MP4 converter.
Step 1: Download and install the software on your PC. Launch it and click the Add Files button to select a file.
Step 2: Now, use the drop-down menu to select the output format as MP4.
Step 3: Tap Convert, and the tool will instantly convert the file to MP4. If you want, you can also click the Edit button to tweak the final output before conversion.
Pros:
● Instantly convert videos to MP4
● Use the dedicated editing panel to make final adjustments to the video
Cons:
● Unlike other video converters, there are limited output formats in DAT to MP4 converter
4. VideoSolo Video Converter Ultimate
VideoSolo Video Converter Ultimate offers a quick and effective way to convert DAT to MP4. The tool supports 300+ video formats, which means you have endless opportunities when it comes to changing one video format to the other. The cherry-on-top is the built-in video enhances that'll help you to improve the video quality as well.
Follow these instructions to convert videos using the VideoSolo video converter.
Step 1: First of all, load the DAT file by tapping the Add Files button. Alternatively, you can drag-&-drop a DAT file to load it in VideoSolo's timeline.
Step 2: Tap the Profile button to choose an output format.
Step 3: At this point, you can either tap Convert or make the final adjustments to the video before conversion.
Pros:
● It is compatible with both macOS and Windows
● VideoSolo is a free DAT to MP4 converter
Cons:
● You won't be able to share converted videos to social media from the software directly
5. Movavi Video Converter
Movavi is yet another remarkable video converter that supports a seamless DAT to MP4 conversion. You can use Movavi to convert videos with different file sizes. As compared to other video converters, Movavi offers lightning-fast video conversion, making it easier to convert DAT files to MP4 quickly.
How To Open A Dat File
Here are the steps to Movavi to convert videos using Movavi.
Step 1: Launch Movavi and tap Add Media to add the DAT file.
Step 2: Choose MP4 as the output format in the present ribbon window at the bottom of the screen.
Step 3: Click Save To to choose a destination folder for the file and click Convert to start the conversion.
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● Export videos in batch
● You can also use Movavi to edit video clips and merge them together to create a movie
Cons:
● Movavi has comparatively limited video editing features
Part 3. 5 free ways to convert DAT to MP4 online.
Apart from using a dedicated video converter for PC, you can also use an online converter to convert VCD DAT to MP4 free. There is an extensive range of online video converters that you can use to instantly convert DAT files to MP4 without investing in dedicated software.
So, here's a list of the top 3 DAT to MP4 online video converters.
1. AConvert
AConvert is another free option for converting DAT to MP4, DAT to MOV, DAT to WMV, or other video formats. The program has decent conversion speed and allows adding files up to 200MB in size. Once converted, the file can be either saved to your desktop, Google Drive, or Dropbox. AConvert also allows changing the bit rate, frame rate, or size of the output file is needed. The interface of the program is simple and easy to understand.
Step 1: Open https://www.aconvert.com/video/ on your PC browser. Click Choose File to browse and add the desired DAT file to the program interface.
Step 2: Select MP4 (or any other if needed) as the Target format. Under Options: tab, you can also change the size, bit rate, or frame rate of the file is required.
Step 3: Hit the Convert Now button to start the process.
Once converted, the file can be downloaded from the link at the software interface.
Pros:
● No need for any download or installation
● Simple to use interface
● Allows changing bit rate, frame rate, or size if needed
● Converted videos can be saved to PC, Dropbox, or Google Drive
Cons:
● No batch processing and additional features
● The file size limitation on uploading videos
● Limited formats as compared to other similar programs
● Converting speed depends on the Internet connection
2. Online Convert
Online-Convert is an all-in-one online converter that can convert different types of files, such as videos, images, audios, documents, etc. The tool lets you convert three files simultaneously, making it convenient even to convert multiple files at a single point in time.
Here's how to convert DAT to MP4 using Online-Convert.
Step 1: Go to online-convert.com and select the video converter.
Step 2: Choose to MP4 and tap Add Files to select the DAT file from your local storage. You can also add a file using a Google Drive link.
Step 3: Click Start Conversion and the DAT files will be instantly converted to MP4. Tap Download to save the converted file on your PC.
Pros:
● Supports a wide range of conversions
● You can even configure video presets to make final changes to the video
Cons:
● You can't convert more than 3 files at once
3. Apowersoft Online Converter
Apowersoft is yet another online DAT to MP4 converter you can use on both Windows and macOS to convert videos. The tool can be used to convert DAT files for different output devices as well. Some of these devices, including the iPhone, iPad, iPod, Android smartphone, etc.
Step 1: Go to the official website and click Select files to start.
Step 2: You'll be asked to download a launcher to convert the video. So, download it and use it to upload the DAT file that you want to convert.
Step 3: Now, simply click Convert to start the conversion process.
Pros:
● Convert DAT to MP4 in a seamless manner
● It can be used to convert 4k videos as well
Cons:
● Some users find it quite annoying to download the launcher when they can simply convert the video using other online tools
4. Online Converter
Online Converter offers the simplest way to convert videos from DAT to MP4. Even though there's no fancy user interface, Online Converter is the most suitable option for people who are looking to convert only one video.
Step 1: Click Add File to select a DAT File.
Step 2: Use the drop-down menus to select initial and output formats, respectively.
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Dat File Reader For Mac Free Download
Step 3: Click Choose File to upload a DAT file and click Convert. That's it; the DAT file will be converted to MP4, and you'll be able to play it on every device.
Open Dat File Mac
Pros:
● It can quickly convert DAT files to MP4
● It supports a wide range of video formats
Cons:
● There's no dedicated editing panel to edit your videos before the final conversion
Part 4. FAQs about playing AVSEQ01.DAT File.
Question 1: What is a DAT File
There are mainly three kinds of files with .dat extension: general data file, the Winmail.dat file used in email, and VCD video files. And the third one is what we are talking about. A DAT video is usually used to store MPEG-1 encoded video streams on VCD or SVCD discs. In most cases, the DAT videos are hard for you to play. So converting DAT to popular, standard video formats is necessary for extensive uses.
Question 2: Why I Can't Open the avseq.dat File on Windows or Mac?
You need to use a third-party program to convert DAT to QuickTime or convert DAT to MP4. Then you can watch the movie on the avseq.dat file.
Conclusion
Though the above 10 methods will help you to convert DAT to MP4 free or online, if you want to own a more professional video converter without ads or watermarks to finish the conversion tasks more time-saving and quickly, just download Wondershare UniConverter (originally Wondershare Video Converter Ultimate), the best DAT video converter, for a free trial.