Moving files into folders

Hello There. My apologies but I just can't quite figure out how to move uploaded files into folders we have created.
For example: Under Member Downloads, we have a folder called
Meeting Roles - How to Guides
There is only one file in that folder: When_You_Are_The_Evaluator
There are several files (below) that have been uploaded but I don't see how I can get move them into their folder
Meeting_Roles_-_How_to_Guides_When_you_are_theTopics_Master.pdf
Meeting_Roles_-_How_to_Guides_When_you_are_the_Toastmaster.pdf

I did review your support article support.toastmastersclubs.org/doc/item/file-management but I haven't been able to figure out how to do this.
Thank you,
Danny Hirsch

Rename the files to go in the "folder" so that they start with the folder name
Meeting Roles - How to Guides:
followed by the file name
You must have a colon and a space between the folder name and the file name
for example, change
Meeting_Roles_-_How_to_Guides_When_you_are_theTopics_Master.pdf
to
Meeting Roles - How to Guides: When_you_are_theTopics_Master.pdf