diff --git a/docx.go b/docx.go
index 3e7dbe2..43501cd 100644
--- a/docx.go
+++ b/docx.go
@@ -124,3 +124,10 @@ func (f *Docx) Read(p []byte) (n int, err error) {
 	f.isbufempty = false
 	return f.buf.Read(p)
 }
+
+// UseTemplate will replace template files
+func (f *Docx) UseTemplate(template string, tmpfslst []string, tmplfs fs.FS) {
+	f.template = template
+	f.tmplfs = tmplfs
+	f.tmpfslst = tmpfslst
+}
diff --git a/empty.go b/empty.go
index 6f7451f..e3735cb 100644
--- a/empty.go
+++ b/empty.go
@@ -67,16 +67,8 @@ func newEmptyA4File() *Docx {
 		rID:          3,
 		slowIDs:      make(map[string]uintptr, 64),
 		template:     "a4",
-		tmpfslst: []string{
-			"_rels/.rels",
-			"docProps/app.xml",
-			"docProps/core.xml",
-			"word/theme/theme1.xml",
-			"word/fontTable.xml",
-			"word/styles.xml",
-			"[Content_Types].xml",
-		},
-		buf: bytes.NewBuffer(make([]byte, 0, 1024*1024)),
+		tmpfslst:     A4TemplateFilesList,
+		buf:          bytes.NewBuffer(make([]byte, 0, 1024*1024)),
 	}
 	docx.Document.Body.file = docx
 	return docx
diff --git a/fs.go b/fs.go
index bfbf6a2..ecc953f 100644
--- a/fs.go
+++ b/fs.go
@@ -27,4 +27,15 @@ var (
 	//go:embed xml
 	//go:embed xml/a4/_rels/*
 	TemplateXMLFS embed.FS
+
+	// A4TemplateFileList is the files list under TemplateXMLFS/xml/a4
+	A4TemplateFilesList = []string{
+		"_rels/.rels",
+		"docProps/app.xml",
+		"docProps/core.xml",
+		"word/theme/theme1.xml",
+		"word/fontTable.xml",
+		"word/styles.xml",
+		"[Content_Types].xml",
+	}
 )
diff --git a/structshape.go b/structshape.go
index 72329ae..8e4c7a5 100644
--- a/structshape.go
+++ b/structshape.go
@@ -230,8 +230,8 @@ type WPSSpPr struct {
 	NoFill    *struct{} `xml:"a:noFill,omitempty"`
 	Line      *ALine
 
-	EffectList struct{} `xml:"a:effectLst"`
-	ExtList    struct{} `xml:"a:extLst"`
+	// EffectList struct{} `xml:"a:effectLst"`
+	// ExtList    struct{} `xml:"a:extLst"`
 }
 
 // UnmarshalXML ...