- Complete the element `sheetFormatPr` struct definition;

- Partial logic performance optimization, use pointer reference instead of a pass the variable value;
- Add comments for content types struct definition;
- Update go test `TestSetBorder` section

1 files changed, 7 insertions, 0 deletions

diff --git a/xmlContentTypes.go b/xmlContentTypes.go
index 4e185a0..c44b8d5 100644
--- a/xmlContentTypes.go
+++ b/xmlContentTypes.go
@@ -2,17 +2,24 @@ package excelize
 
 import "encoding/xml"
 
+// xlsxTypes directly maps the types elemen of content types for relationship
+// parts, it takes a Multipurpose Internet Mail Extension (MIME) media type as a
+// value.
 type xlsxTypes struct {
 	XMLName   xml.Name       `xml:"http://schemas.openxmlformats.org/package/2006/content-types Types"`
 	Overrides []xlsxOverride `xml:"Override"`
 	Defaults  []xlsxDefault  `xml:"Default"`
 }
 
+// xlsxOverride directly maps the override element in the namespace
+// http://schemas.openxmlformats.org/package/2006/content-types
 type xlsxOverride struct {
 	PartName    string `xml:",attr"`
 	ContentType string `xml:",attr"`
 }
 
+// xlsxDefault directly maps the default element in the namespace
+// http://schemas.openxmlformats.org/package/2006/content-types
 type xlsxDefault struct {
 	Extension   string `xml:",attr"`
 	ContentType string `xml:",attr"`