sample,nuclear_image,spot_table
sample_fov1,/path/to/dapi/file/sample_fov1.DAPI.tiff,/path/to/spots/file/sample_fov1.spots.txt
sample_fov2,/path/to/dapi/file/sample_fov2.DAPI.tiff,/path/to/spots/file/sample_fov2.spots.txt