Dataformat information Excel (xlsx) This is an open dataformat. Is used by the following dataset parts: Datafiles (in dataset: Online CO2 density measurements from NCCS Task 8 Fiscal metering) Excel data (in dataset: Rock mechanics data for 31/5-7 Eos well core) Excel data (in dataset: Rock mechanics data for 31/5-7 Eos well - thermo-mechanical response) Seismic Event Catalog (in dataset: Illinois Basin - Decatur Project Dataset)