Office Customization Tool 2021 - Install Office Software with Official Method

I know this is 2026 but still some people love office 2021 and its features, but they don't know how to install office 2021 in their devices and what is the real and official process is. So guys , don't worry you are on the right website that will guide you about the proper office installation steps with the official microsoft website. So lets push the power button of your laptop computer and connect the internet and learn the process and install your favourite office softwares.

Installing Office 2021 is an amazing journey, and you will really enjoy it because I have made this guide very easy to follow so anyone can easily understand and install Office 2021 LTSC on their device I have simplified this guide into simple steps.

So, let's start your Office 2021 installation journey and understand everything about the installation process.

What Is Office Customization Tool 2021

The Office Customization Tool (OCT) is the official method for installing Microsoft Office software in a fully customized way. This tool is officially provided by Microsoft and can be used by both organizations and individual users to install Office applications according to their needs.

The Office Customization Tool is not limited to Office 2021 only. It can also be used to install Office 2019, Office 2024, and Microsoft 365 apps with custom settings such as selected applications, language preferences, update channels, and installation options.

On this website, we mainly provide customized XML configuration files for Office 2021 installations. These XML files are carefully configured to make the installation process easier, faster, and more convenient for users.

System Requirement

Requirement	Details
Operating System	Windows 10, Windows 11, Windows Server 2019, or Windows Server 2022
Processor	1.6 GHz or faster Dual-Core processor
RAM	4 GB RAM (64-bit) or 2 GB RAM (32-bit)
Storage	Minimum 4 GB of available disk space
Display	Minimum 1280 × 768 screen resolution
Graphics	DirectX 9 or later with WDDM 2.0 driver
Internet Connection	Required for installation

Key Features Of Office Customization Tool 2021

Allows users to customize and deploy Microsoft Office installations
Provides official Office configuration options directly from Microsoft
Supports Office LTSC, Office 2021, Visio, and Project deployments
Lets users choose 32-bit or 64-bit Office architecture
Allows selection of Office apps, languages, and update channels
Generates configuration XML files automatically
Supports offline Office deployment and installation
Useful for both individual users and organizations
Helps simplify large-scale Office deployment processes
Provides a safer and more professional Office installation method

How to Install Office 2021 Using Office Customization Tool – Step-by-Step Guide

Step 1:- So first of all check your internet is connected if you have wifi network then its good else you can connect with mobile hostpot to start the process.

Step 2:- Now open any browser such as chrome or microsoft edge and type on search bar office customizationt tool. Open the very first microsoft official website of customization tool.

Step 3:- Choose the correct system architechture of your system nowadyas new architechture is 64-bit. Verify yours and choose the correct . Then belove choose the right options.

In Office Suites: Choose Office Professional Plus 2021 Volume License
In Visio: Choose Visio LTSC Professional 2021 Volume License
In Project: Choose Project Professional 2021 Volume License
In Additional Products: Choose Language Pack

Step 4:- In Language section choose primary Language English and in additional langauegs you can choose according to your region or skip this step and click on Next button.

Step 5:- In the installation options leave everything as it is and just click on the Next button again.

Step 6:- Now you will reach at Upgrade and Update options here also do the same, leave everything as it is and scroll down then click on the Nextagain.

Step 7:- In License and Activation, first of all accept the license terms and leave the product keys settings as it is. Then click on the Next button again.

Step 8:-You will reach on the general settings here you can add your bussiness name and description or you can skip the settings.

Step 9:- In application prefrence leave just scroll down and click on Finish.

Step 10:- On the right side a export section will appear click on Export. to export a XML file of your office customization tool setting that will help you to install office 2021.

Step 11:- A new section will open where choose the second option Office Open XML Format and click on the Ok.

Step 12:- In this step you have to accept the terms in license agreement and then click on Export button.

Step 13:- Now the final configuration.xml file will be download that help you to deploy the office 2021.

Note:- If your file was not downloaded successfully, you can download the same file using the button below. This is the same file I created.

Download

Step 14:- Now open the tab and search for Office Deployment Tool. Open the very first official Microsoft website and download the ODT to deploy the previous XML file.

Step 15:- Now a page will open scroll down you will see a download ODT button click on it.

Note: Download Office Deployment Tool only from the official Microsoft website.

step 16:- Now in download folder we have two files: 1.Configuration.xml and 2.officedeploymenttool_19929-20062.exe move both file to a new folder name the folder. office2021

Step 17:- Run the officedeploymenttool_19929-20062.exe file and click on the continue button then extract the file in office2021 folder.

Step 18:- Delete the officedeploymenttool_19929-20062.exe and configuration-Office365-x64 files. Then you will have two files.1.Configuration.xml and 2.Setup.exe.

Step 19:- Now push the Windowsbutton and open Command Prompt then run as administrator

Step 20:- Type this command prompt: cd[space][folder path] for example mine office2021 folder path is C:\Users\Mahesh Ishana\Downloads\office2021 choose your path wisely and the command prompt should be cd C:\Users\Mahesh Ishana\Downloads\office2021 and then hit the enter button.

Step 21:-Then type another command or you can copy-paste : setup.exe /configure configuration.xml then hit enter button again.

Step 22:- So Finally as soon as you hit the enter button the installation process will start and in a few minuts office 2021 LTSC will be installed in your computer. I hope you have enjoyed the office customization tool 2021 beautiful feature of installing office.

Conclusion

I hope this Office Customization Tool 2021 guide helped you understand the complete Office installation process easily. Office Customization Tool is a useful and official Microsoft utility that allows users to customize and deploy Office applications in a professional way.

This method is suitable for both individual users and organizations that want to install Office softwares with proper configuration and deployment settings. By following the official process, users can install Office applications more safely, efficiently, and professionally.

🔗 Important Links

Tool	Link
Office Customization Tool	config.office.com
Office Deployment Tool	Microsoft ODT Download
Release History & Docs	ODT Release Notes

Frequently Asked Questions

Yes, Office Customization Tool is an official Microsoft utility that helps users customize and deploy Microsoft Office installations using configuration settings and XML files.

Yes, users can install Office 2021 LTSC using Office Deployment Tool along with a properly configured XML file generated from Office Customization Tool.

Yes, Office Customization Tool and Office Deployment Tool support offline Office deployment and installation methods for both individual users and organizations.