use CompressionNormal on Writer.Create

.github/workflows/test.yml

@@ -4,7 +4,7 @@ jobs:
  test:
  strategy:
  matrix:
- go-version: [1.14.x, 1.15.x]
+ go-version: [1.15.x, 1.16.x]
  platform: [ubuntu-latest, macos-latest, windows-latest]
  runs-on: ${{ matrix.platform }}
  steps:

writer.go

@@ -116,7 +116,7 @@ func (w *Writer) Close() error {
 // This returns a Writer to which the file contents should be written.
 // The file's contents must be written to the io.Writer before the next call to Create, CreatePart, or Close.
 func (w *Writer) Create(name, contentType string) (io.Writer, error) {
- return w.CreatePart(&Part{Name: name, ContentType: contentType}, CompressionNone)
+ return w.CreatePart(&Part{Name: name, ContentType: contentType}, CompressionNormal)
 }
 
 // CreatePart adds a file to the OPC archive using the provided part.