文件扩展名^{(File extensions)}是文件名最后一个句点之前的字符。它可以帮助我们找到我们试图打开的文件类型，即它是音频文件、视频文件还是我们需要访问的简单文档以及打开它所需的程序类型。我们知道或遇到的常见文件格式有MPG、MP$、Avi、MOV和WMV——但还有更多。有时我们可能会遇到我们的计算机可能不知道如何打开的不熟悉的文件扩展名。好吧^(Well)，如果您正在寻找一种更通用的解决方案来识别无法识别的文件类型，这里有一些工具可以帮助您。

在Windows 10中打开未知文件类型^{(File Type)}

您可以使用这些免费软件或在线工具之一在Windows 10/8/7上识别、运行或打开任何具有未知文件扩展名的文件。^{(File extension)}

1] TrIDNet 文件标识符

有一个软件和一个在线版本的TrIDNet 文件标识符^{(TrIDNet File Identifier)}可用，它可以从其二进制签名中确定文件类型。您只需点击“浏览”按钮选择要分析的文件，然后等待几秒钟以显示结果。该文件将被读取并与数据库中的定义进行比较。有 2 种变体可用：

1. 在线的
2. 离线

TrIDNet的前一个版本用于重量较轻的文件类型，而后者用于较重的文件和离线时。

2]媒体信息

如果您要识别的文件类型是媒体文件，您可以尝试MediaInfo，并且您想知道参数，例如

1. 写作库
2. 容器和编解码器信息
3. 比特率
4. 方面。

3] 文件

FILExt是识别文件类型的广为人知的站点之一。它包括一个庞大的文件扩展名数据库和使用它们的各种程序。当您想知道文件扩展名时，只需将其输入FILExt的搜索框并点击其搜索^(Search)按钮。如果文件类型列在任何FILExt数据库中，则与其相关的数据将显示在结果页面上。如果不是，将向用户提供指向页面的链接，其中包含有关如何进行进一步研究的提示。FILExt.com的独特之处在于它是一个适用于各种文件类型的文件扩展名参考库。该网站有近 1526 个扩展的字母索引。

4] OpenWith.org

OpenWith能够为其用户提供有关大多数文件扩展名的详细信息以及可以打开和创建每种文件类型的免费程序的链接。该程序的一个重要功能是它附带了一个即使您处于离线状态也可以使用的应用程序。此外，一旦您发现它毕竟不是恶意软件，它就可以确定访问该文件所需的软件。

如果您知道打开未知文件扩展名的任何其他免费方式，请告诉我们。^{(Let us know if you know any other free way to open unknown file extensions.)}

How to open unknown File Type in Windows 10

File extensions are the characters that precede the last period of a file name. It helps us find the type of file we are trying to open i.e. whether it is an audio file, video file, or simply a document that we need to access and the kind of program required to open it. The common formats of files that we are aware of or have come across are MPG, MP$, Avi, MOV, and WMV – but there are many more. At times we may come across an unfamiliar file extension that our computer may not know how to open. Well, If you’re looking for a more generic solution to identifying unrecognized file types, here are tools to help you out.

Open unknown File Type in Windows 10

You can identify, run or open any file with an unknown File extension on Windows 10/8/7 using one of these free software or online tools.

1] TrIDNet File Identifier

There is a software as well as an online version of TrIDNet File Identifier available which can determine a file type from its binary signatures. All you need to do is simply hit the ‘Browse’ button to select a file to be analyzed and wait for few seconds for the results to be displayed. The file will be read and compared with the definitions in the database. There are 2 variants available:

1. Online
2. Offline

The former version of TrIDNet is used for file types that are light in weight while the latter is used for heavier files and when offline.

2] MediaInfo

You can try MediaInfo if the file type you are trying to identify is a media file, and you would like to know the parameters such as

1. writing library
2. container and codec information
3. bitrate
4. dimension.

3] FILExt

FILExt is one of the widely-known sites to identify file types. It includes a vast database of file extensions and the various programs that use them. When you want to know the file extension, simply enter it into the search box of FILExt and hit its Search button. If the file type is listed in any of the FILExt databases, data related to it will be shown on a results page. If it’s not, the user will be offered a link to a page with hints on how to do further research. What’s unique about FILExt.com is that it is a file extension reference library for a variety of file types. The site has an alphabetical index of nearly 1526 extensions.

4] OpenWith.org

OpenWith is capable of providing its users with detailed information about most file extensions and links to free programs that can open and create each type of file. One great feature of this program is that it comes with an app that works even when you are offline. Also, it can determine the software you will be requiring to access the file once you have discovered that it isn’t malware after all.

Let us know if you know any other free way to open unknown file extensions.

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