Hi@akhtar,
Hierarchical Data Format (HDF) is a set of file formats (HDF4, HDF5) designed to store and organize large amounts of data. You can use the below command to do so.
df = pd.DataFrame([[1, 1.0, 'a']], columns=['x', 'y', 'z'])
df.to_hdf('./store.h5', 'data')