You can do it in a couple of ways. But I will show you the easy way through Filezilla.

So we will go through Some Normal Process.

• Download
• Installation
• Create Users
• Add Shared Folder 

Download

• • Open Your Suitable Browser
  • Go to “https://filezilla-project.org/”
  • Download Both Software Filezilla Client & Server

Installation

• • Now Install Both Software on Both RDP
  • I will recommend you to go through Default Installation Process

Create Users

• • You will need to create Users For Filezilla Server
  • Click on Edit and then Users.
  • On the left side of the window that comes up, click on “Shared folders.”
  • Once there, click on “Add” underneath “Users.” Enter the username for an account that another computer will be using to access the repository we’re setting up.
  • Click OK once you’re done entering the account name and Password

Add Shared Folder

• • click on “Add” underneath the “Shared folders” section.
  • Now Choose Your Desired Folder 
  • Now You need to assign the user permissions for this repository
  • To give the user further permissions, such as the ability to copy files to this repository, check the boxes beneath ‘Files’ and ‘Directories.’
  • Click OK once you’re done setting the user permissions.

And now you can access your folder from another RDP

Here is Tutorial Video Link