If you can't find the file in the file picker view. Filepicker just lets you see a view of the files in the database that you have access to in various places. Technically speaking, if you have uploaded a file into Moodle it is STORED in a database.
9 How can I solve the 'Invalid JSON string' error?.8 Is there a way to delete files from the file picker?.7 Is there a way to upload a lot of files at once?.6 Can I have my own file storage area?.5 How can I create shared folders of common files for others to access?.4 Can I search for files in the file picker?.3 Can I move items around in the file picker?.