import openpyxl as op

# Import the workbook into workspace
wb = op.load_workbook("RTP Athletes.xlsx")
print(wb.get_sheet_names())
ws1 = wb["UFC RTP Athletes"]
ws1["C2"] = (str(ws1["A2"].value) + " " +  str(ws1["B2"].value))
print(ws1["C2"].value)