save bytes on memory instead of string

1 files changed, 9 insertions, 2 deletions

diff --git a/excelize.go b/excelize.go
index 0b1e410..31fa370 100644
--- a/excelize.go
+++ b/excelize.go
@@ -23,7 +23,7 @@ type File struct {
 	Styles        *xlsxStyleSheet
 	WorkBook      *xlsxWorkbook
 	WorkBookRels  *xlsxWorkbookRels
-	XLSX          map[string]string
+	XLSX          map[string][]byte
 }
 
 // OpenFile take the name of an XLSX file and returns a populated XLSX file
@@ -88,7 +88,7 @@ func (f *File) workSheetReader(sheet string) *xlsxWorksheet {
 	}
 	if f.Sheet[name] == nil {
 		var xlsx xlsxWorksheet
-		xml.Unmarshal([]byte(f.readXML(name)), &xlsx)
+		xml.Unmarshal(f.readXML(name), &xlsx)
 		if f.checked == nil {
 			f.checked = make(map[string]bool)
 		}
@@ -141,6 +141,13 @@ func replaceWorkSheetsRelationshipsNameSpace(workbookMarshal string) string {
 	return workbookMarshal
 }
 
+func replaceWorkSheetsRelationshipsNameSpaceBytes(workbookMarshal []byte) []byte {
+	var oldXmlns = []byte(`<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">`)
+	var newXmlns = []byte(`<worksheet xr:uid="{00000000-0001-0000-0000-000000000000}" xmlns:xr3="http://schemas.microsoft.com/office/spreadsheetml/2016/revision3" xmlns:xr2="http://schemas.microsoft.com/office/spreadsheetml/2015/revision2" xmlns:xr="http://schemas.microsoft.com/office/spreadsheetml/2014/revision" xmlns:x14="http://schemas.microsoft.com/office/spreadsheetml/2009/9/main" xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac" mc:Ignorable="x14ac xr xr2 xr3" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mx="http://schemas.microsoft.com/office/mac/excel/2008/main" xmlns:mv="urn:schemas-microsoft-com:mac:vml" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">`)
+	workbookMarshal = bytes.Replace(workbookMarshal, oldXmlns, newXmlns, -1)
+	return workbookMarshal
+}
+
 // UpdateLinkedValue fix linked values within a spreadsheet are not updating in
 // Office Excel 2007 and 2010. This function will be remove value tag when met a
 // cell have a linked value. Reference