diff --git a/app/code/Magento/CatalogImportExport/Model/Export/Product.php b/app/code/Magento/CatalogImportExport/Model/Export/Product.php
index db1514f0f0596c4f5b789e71b6b7e2f9558a7786..c9d155177e48a588a655d603234482ac53cbe545 100644
--- a/app/code/Magento/CatalogImportExport/Model/Export/Product.php
+++ b/app/code/Magento/CatalogImportExport/Model/Export/Product.php
@@ -995,6 +995,8 @@ class Product extends \Magento\ImportExport\Model\Export\Entity\AbstractEntity
     }
 
     /**
+     * Wrap values with double quotes if "Fields Enclosure" option is enabled
+     *
      * @param string|array $value
      * @return string|array
      */
diff --git a/app/code/Magento/CatalogImportExport/Model/Import/Product.php b/app/code/Magento/CatalogImportExport/Model/Import/Product.php
index 73e7939b681fb911111b0cd044482742ed7c47fb..afb2e86b6248a79523405c78acd1cf27953b90c2 100644
--- a/app/code/Magento/CatalogImportExport/Model/Import/Product.php
+++ b/app/code/Magento/CatalogImportExport/Model/Import/Product.php
@@ -2532,6 +2532,8 @@ class Product extends \Magento\ImportExport\Model\Import\Entity\AbstractEntity
     }
 
     /**
+     * Parse values of multiselect attributes depends on "Fields Enclosure" parameter
+     *
      * @param string $values
      * @return array
      */
diff --git a/app/code/Magento/CatalogImportExport/Model/Import/Product/Validator.php b/app/code/Magento/CatalogImportExport/Model/Import/Product/Validator.php
index f761a016b7737ddb4e0f9ac4cbe925b5a47eaa6d..0ca40e916c85b0fe50886f36fe502538a370ae50 100644
--- a/app/code/Magento/CatalogImportExport/Model/Import/Product/Validator.php
+++ b/app/code/Magento/CatalogImportExport/Model/Import/Product/Validator.php
@@ -72,6 +72,8 @@ class Validator extends AbstractValidator implements RowValidatorInterface
     }
 
     /**
+     * Check if value is valid attribute option
+     *
      * @param string $attrCode
      * @param array $possibleOptions
      * @param string $value