This closes #1886, remove the namespace prefix for the default spreadsheet namespace

- Improvement compatibility for the workbook internal part with a spreadsheet namespace prefix
- Update GitHub Action configuration, using the macOS 13 in the unit test pipeline to temporarily resolve test failed in macos-14-arm64

Author: xuri

.github/workflows/go.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         go-version: [1.18.x, 1.19.x, 1.20.x, '>=1.21.1', 1.22.x]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-13, windows-latest]
         targetplatform: [x86, x64]
 
     runs-on: ${{ matrix.os }}

lib.go

@@ -646,6 +646,11 @@ func getRootElement(d *xml.Decoder) []xml.Attr {
 		case xml.StartElement:
 			tokenIdx++
 			if tokenIdx == 1 {
+				for i := 0; i < len(startElement.Attr); i++ {
+					if startElement.Attr[i].Value == NameSpaceSpreadSheet.Value {
+						startElement.Attr[i] = NameSpaceSpreadSheet
+					}
+				}
 				return startElement.Attr
 			}
 		}