Update file(s) "/." from "groupdocs-metadata/Groupdocs.Metadata-References"

Author: yevgen-nykytenko

content/sites/groupdocs/metadata/english/net/groupdocs.metadata.options/previewoptions.previewformats/_index.md

@@ -18,9 +18,9 @@ public enum PreviewFormats
 
 | Name | Value | Description |
 | --- | --- | --- |
-| PNG | `0` |  |
-| JPEG | `1` |  |
-| BMP | `2` |  |
+| PNG | `0` | Portable Network Graphics Format. |
+| JPEG | `1` | Joint Photographic Experts Group Format. |
+| BMP | `2` | Bitmap Picture Format. |
 
 ### See Also