What is XML? Is a general-purpose markup language created by the World Wide Web Consortium (W3C) to create other markup languages, and defines the syntax for encoding documents so that humans and tools and machines can readable. This file makes sharing data between different systems simpler. XML-based languages ​​(RDF, RSS, MathML, XHTML, SVG, GML and cXML) allow modifications and validation of programs and applications.

Explain: What is an XML file

?Many of you still wonder what XML file is or what XML extension is, which stands for Extensible Markup Language or Extensible Markup Language itself. – XML. XML are simply plain text files that use custom tags to describe the structure and other features of the document.

What are XML files?

Advantages and disadvantages of XML files


Completely independent data: This is also the biggest advantage of XML files. Because of this advantage, most software or programs can read XML files. XML files are used to exchange data between different programs and systems because it can read and analyze the data easily. Anyone can create an XML file easily and without much effort. The XML file is used for Remote Procedure Calls for web services.


Besides the above advantages, XML files also have an error rate of 5-7% when transmitting data. Although this number is not too high, in fact, people still need to consider before using this file to exchange information.

How to open XML files

There are many ways to read XML files, how to directly open and edit them through a text editor or how to read XML files with browsers and software, which can both view, edit, and even convert. convert that file to another format.

Viewing: What is XML

Use Notepad to open XML file

Using Notepad is the most common way for you to open XML files. However, this method has the disadvantage that it will not highlight the standard format of the data in XML.

Users can easily open XML files in any text editor because they are just text files by nature. And that’s why people usually open through Notepad, but everyone will find the problem that Notepad is NOT designed to display, view XML files. For quick viewing, you can still use it, you should still open it through another better tool.

Use Notepad to open the XML file

To open the XML file in Notepad, right-click on the XML file, select “Open with” on the menu, and finally select “Notepad”.

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It can be seen that the file opens very quickly, but the original format is no longer available, the entire content is difficult to distinguish because it has been destroyed by Notepad. Open the XML file with the advanced Notepad++ tool, which will help display the full format it is.

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Use web browser to view data

In case you want to view and not edit the file, just using the browser you are using is enough. Usually the user’s default browser is set up to be able to view the XML file. You just need to double click on the XML file to open it.

To open the XML file in any application, you just need to right-click on the file (for example, the Chrome application).

Use online editor

In case you want to edit XML files online, or need to convert them to another format without having to download any software, the following websites will help you to do that perfectly. Completely free: TutorialsPoint, XMLGrid, CodeBeautify are all very good to use. Not only that, after editing, it also allows you to download the XML file after editing, or convert it to another format instead.

Using XML Viewr

XML Viewer software designed and supports very well for displaying and opening XML files. It also allows you to edit, add or remove XML file entries. With a user-friendly interface, the drag and drop function is easily optimized and most convenient for you.

Use XML Viewr software to open XML files

You can find and download XML Viewr directly and easily from the homepage. After the zip file is downloaded, you need to unzip and install the XMLView.exe file

There are many ways to open XML files on XML Viewer. You have many ways to open XML files: Select the Open icon on the toolbar; Select File and then Open (press Ctrl + O) or Drag and drop the XML file into the XML Viewer interface. The interface appears the Open window, then you select the file to open and click Open. You will clearly see the difference when the file is. XML is displayed very quickly, all tags, values, etc. are detailed. Below is the XML file information. To edit the XML file, you choose File -> Editor. Under this XML Editor window will be displayed. displayed in the structured format of the XML file, allowing you to customize it as you like. After editing, click Save to save the file after editing.

How to create XML files effectively


Use to save word files

This is a familiar operation, opening and saving whenever you want to edit a word file, after editing, you need to save your document.

You choose Save or choose Open. And in the default mode of the word file format is always .doc. How to create an XML file by opening File Open Type and then selecting the file type for Word to update the list

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Or when opening, select All Word Documents in the File As Type section. Then select the XML file when the Name dialog box appears. That’s it, all changes saved in the settings will be updated, creating an XML file is very simple.

Save as *.xml . format

In case you save the file, by default, Word will save the file in the .doc format. You only need to plan to work with XML files and want to change the file extension permanently, you need to change the setting for Word to automatically save the file as XML file. The detailed steps to save in .XML format are:

Go to the Tool/Options menu. Select the Save tab. Select the *.xml XML format in the Save Word File As section, then click OK to finish.

File saved with .xml . extension

Change Attribute

Every time you open an XML document, Word automatically displays the tag and content. At the same time, it also opens an additional XML Structure task window.

Instructions on how to change detailed properties

You right-click on an element and select Attributes Appears the Attributes For Item dialog box, where you change the value, select an attribute in the Assigned Attributes list and edit the value in the Value box. In case there are multiple values, dialog box will not show the setting value. So before opening the Attributes For Item dialog box, you should pre-select the elements to be installed.

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Search Options

When using Word, you are allowed to manage and control tasks on XML files, but often it is quite difficult for you to find the tool options to perform configuration. Detailed steps to configure XML file:

You go to the menu Tool/ Template And Add-Ins. Select the XML Schema tab. Click XML Options to open the XML Options dialog box.

Or to make it simpler, you select the XML Options link at the bottom of the XML Structure window to open the XML Options dialog box. Note that these are only temporary, or current settings, which means that when you work and open another file, you have to do the reset from scratch.

Edit XML file

If you want to edit the current content without using the tab in case you delete it by mistake, you just need to turn off the tab when editing. This is done by unchecking the “Show XML Tags In The Document” option inside the XML Structure task window. You need to enter the new value you want. To delete a value, you need to select enough from the beginning to the end tag because if you delete the value without removing the tag, you will inadvertently create empty elements. Another way is that you can change the hidden tag setting. /show by Ctrl+Shift+X.

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Edit XML files

Show empty element

How to fix when there are still empty elements showing up even though you have removed Show XML Tags In The Document. To know when there is an empty element, follow these steps:

Select the Tools/Templates And Add-Ins menu.Select the XML Schema tab.Select XML Options.In the AML View options list, check the option Show Placeholder Text For All Empty ElementsSelect OK twice and done.

Avoid data loss

The format conversion process will specify the format in the Word document. When you convert that do not match the file data, they will not be displayed.

How to open the file to apply the conversion

Select Open With Transform from the Open dialog box’s drop-down list. Or convert when saving the file: in the Save As section, select XML Document of the File As Type option, select Apply Transform, and continue to select Transform to select the transformation type. want to use.

Note: when converting is converting both the open file and the original document file, even if you convert for the currently saved file, the original file will also be changed. So, save the converted files under a new name or convert the xml file to pdf to avoid data loss or change the original file.

XML Reference Schemas

Please download Office XML Reference Schemas or System Office: XML Schema Reference, if you want to use Word to write code and create XML format. These tools will assist you in the process of creating XML files.

You then open the .chm files in your browser to view and reference as you work. And you will need additional XML Viewer software if you want to share files with other objects.

Disable namespace

There are cases where because the element namespace display table is set by default, the file name in the XML Structure dialog box is too long and meaningless.

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Do the following to remove the namespace:

Click the XML Options link at the bottom of the XML Structure task window.Select Hide Namespace Alias ​​Print XML Structure.Last same click OK.

Through this article, Bkhost introduces and provides you with the most complete information about what XML is, how to open XML files, how to create XML files as well as a few ways to edit XML. On the other hand, coming to BKHost you can also register a cheap domain name for building your website. Please look forward to reading other useful articles on Bkhost’s blog!