Dear readers, In the following, we provide the complete experimental X-ray absorption near-edge structure (XANES) spectroscopy dataset given in our investigation of: "Core-Hole Spectroscopy of Energy Conversion and Storage Related-Phosphorus Compounds Using Soft and Hard X-rays". This dataset includes partial fluorescence yield (PFY)-XANES at P K-edge and P L2,3-edge of 9 solid P-containing compounds with different chemical environments and oxidation states ranging from P(-III) to P(V), namely: GaP, InP, red phosphorus (Red-P), H3PO3, Na2H2P2O6, H3PO4, KH2PO4, Na2HPO4, InPO4. Additionally, P K-edge XANES spectra of aqueous P-containing acids: 1 mol dm-3 H3PO4, 1 mol dm-3 H3PO3, as well as the solution mixture of 1 mol dm-3 H3PO3 + 1 mol dm-3 H3PO4, and 0.1 mol dm-3 H3PO3 + 1 mol dm-3 H3PO4.