Typo fix, rename exported constants, dependencies modules and copyright update

Rename exported constants `NameSpaceDublinCoreMetadataIntiative` to `NameSpaceDublinCoreMetadataInitiative`

1 files changed, 1 insertions, 1 deletions

diff --git a/sheet_test.go b/sheet_test.go
index 9bfee70..a5c99a6 100644
--- a/sheet_test.go
+++ b/sheet_test.go
@@ -400,7 +400,7 @@ func TestSetActiveSheet(t *testing.T) {
 
 func TestSetSheetName(t *testing.T) {
 	f := NewFile()
-	// Test set workksheet with the same name.
+	// Test set worksheet with the same name.
 	f.SetSheetName("Sheet1", "Sheet1")
 	assert.Equal(t, "Sheet1", f.GetSheetName(0))
 }