Hi @Sarah Javed
Thanks for the oml.
Here is some documentation that may help you to work with the upload widget: https://success.outsystems.com/Documentation/11/Developing_an_Application/Design_UI/Inputs/Enable_End_Users_to_Upload_Files
You not saving the file, so you can't really access the name to show on the second screen. You'll need to get data using a query, to get the name, or sending input.
Hope this helps