I want to get all my files out of libre office. I have two or three folders, which are documents, my documents (they seem to be the same) and Memoir. How do I move each file under each folder out of LibreOffice into a flash drive so that I can choose independently where to open them again. I will probably use open office but there is another new app for office that I might look into on my new computer.
Your files are not ‘in LibreOffice’, they are in folders on your computer. They may be ‘marked’ as LibreOffice-files; that’s because the Operating System has been instructed to open them with LO by default. The most efficient way to do file-operations (e.g. move files between folders) is to use the file-manager supplied by the OS.
This is not LO specific.
A LO file is just an ordinary file for your OS.
If you know how to move/copy/delete files in your OS, you know how to achieve this task. Plug your flash drive. When it is mounted (aka. appears on your desktop or in the file manager), use your OS file manager to complete the task.
If you don’t know how to do it, take the time to read your OS manual (paper booklet, on-line manual, vendor web site, …) and learn how to do basic tasks. Every tool needs some training, so do computers.
Don’t forget to close your question if this answer solves your concern.