def upload_data_equations(self, filepath, equations_sheet, data_sheet, column_mapping_sheet=''):
    if (not self.validate_file_inputs(filepath, equations_sheet, data_sheet)):
        return False
    self.filepath = filepath
    self.equations_df = pd.read_excel(self.filepath, sheet_name=equations_sheet, mangle_dupe_cols=True)
    self.df = pd.read_excel(self.filepath, sheet_name=data_sheet, mangle_dupe_cols=True)
    if column_mapping_sheet:
        self.mappings = pd.read_excel(self.filepath, sheet_name=column_mapping_sheet, mangle_dupe_cols=True)
def upload_data_equations(self, filepath, equations_sheet, data_sheet, column_mapping_sheet=):
    if (not self.validate_file_inputs(filepath, equations_sheet, data_sheet)):
        return False
    self.filepath = filepath
    self.equations_df = pd.read_excel(self.filepath, sheet_name=equations_sheet, mangle_dupe_cols=True)
    self.df = pd.read_excel(self.filepath, sheet_name=data_sheet, mangle_dupe_cols=True)
    if column_mapping_sheet:
        self.mappings = pd.read_excel(self.filepath, sheet_name=column_mapping_sheet, mangle_dupe_cols=True)