Magento is a popular eCommerce cms for developing standard e-commerce site. Magento 2.3.3 is released in October 2019. To start working with this CMS you have to install it in your web server properly. This tutorial will help you to install Magento 2.3.3 in XAMPP server.
Magento Installation steps:

1. Download the Magento zip file from the following url:

https://magento.com/

2. unzip the file and rename the folder to Magento.

3. Open php.ini file and enable the following extension

extension=php_intl.dll

extension=php_soap.dll

extension=php_xsl.dll

4. Save php.ini file and restart Apache server

5. Create a database named magento in MySQL.

6. Open the following url in the browser and start the installation. Follow the steps shown in the video tutorial to install magneto faster.

http://localhost/Magento

7. Do the following task if the Magento admin page will not work properly.

A. Go to the following path:

/vendor/magento/framework/View/Element/Template/File/Validator.php

B. Search the following  line

if (0 === strpos($realPath, $directory)) {
    return true;
}

C. Replace the content with the following lines.

$realDirectory = $this->fileDriver->getRealPath($directory);
if (0 === strpos($realPath, $realDirectory)) {
   return true;
}

8. Go to the following link open the admin login page of Magento.

http://localhost/Magento/admin

***Note: If you face any dashboard access error then do the following tasks.

A. Go to the following location

>cd c:\xampp\php

B. Run the following command clear the cache.

>php C:\xampp\htdocs\Magento\bin\magento setup:static-content:deploy -f

>php C:\xampp\htdocs\Magento\bin\magento cache:clean

>php C:\xampp\htdocs\Magento\bin\magento cache:flush

 

The video tutorial to install Magento is given in the following link.

*************************Good Luck*************************