Location of files

I am a new user and have opened a jupyter notebook and am trying to load data from the same folder as the notebook. I have tried ‘/Beasley1_ENVI.hdr’ without success as well as a number of other options.

I keep getting this error, any suggestions?

AssertionError Traceback (most recent call last)
in <cell line: 5>()
4 # open an ENVI image
----> 5 image = io.load(‘Beasley1_ENVI.hdr’ )
7 # open a .ply point cloud

/usr/local/lib/python3.10/dist-packages/hylite/io/init.py in load(path)
133 “”"
→ 135 assert os.path.exists( path ), “Error: file %s does not exist.” % path
137 # load file formats with no associated header

AssertionError: Error: file Beasley1_ENVI.hdr does not exist.