Assuming they're all of the same file extension, you can use the * character to get all the files of a given extension in a directory. For example if they were PNG images
Import[FILEPATH, "*.png"]
Be careful to note that this will extract all PNG images at any level, even within subdirectories of FILEPATH. If you only want files explicitly in FILEPATH you can append *.png to the FILEPATH:
Import[FileNameJoin[{FILEPATH, "*.png"}]]
