The survey matrix answers are not sorted by row when the instructor exports the student's results to Excel. Steps to reproduce the use case:
1. Instructor publishes an assessment which has any survey matrix question.
2. Student takes and submits the assessment.
3. Instructor goes to Total Scores Page and he clicks on "Export" button to export the responses.
4. The Excel obtained contains the survey matrix's answers not sorted by row.
E.g. If the student has answered 1: d, 2: b, 3: c, 4: a, the Excel contains:
4: a, 2: b, 3: c, 1: d. I've attached an image to clarify this.