To load all images/files from a given folder, use the File > New Database or File > New Table command and, in the displayed Add Table dialog box, choose the option "With files from folder" or "With links to files in folder".
The first option inserts files directly in the database file, the second one only links to files in that folder.
This will create a table with records with one loaded image/file or link per field.

Note 1: By default the loaded files are placed in the newly created "Images/Files" field. If these are images, they will be displayed in the binary field panes as usual. All other files will be displayed as their associated icons. If these are, e.g., text, HTML, code snippets, etc., or any files containing textual contents, you can later use the Database > Field Setup command and dialog box to change the field type to "Long Text" or "Code" and display the actual text in the binary field pane.

Note 2: You can also load all images/files from a given folder into a single "Images/Files" field, or save all images/files from a given "Images/Files" field to a folder. To do this, right-click that "Images/Files" field to display the context menu.