namespace Data { public static class ExcelManager { private static AgreementTermsDataExcel _agreementterms; private static CountryAndRegionDataExcel _countryandregion; private static InventoryDataExcel _inventory; public static AgreementTermsDataExcel AgreementTerms => _agreementterms; public static CountryAndRegionDataExcel CountryAndRegion => _countryandregion; public static InventoryDataExcel Inventory => _inventory; static ExcelManager() { _agreementterms = new AgreementTermsDataExcel(); _countryandregion = new CountryAndRegionDataExcel(); _inventory = new InventoryDataExcel(); } }}