Editing a Xlsx document using PhpSpreadsheet should preserve the workbook
view attributes of that document. For example, if the worksheet tabs are
hidden in the original document, they should remain hidden after updating.
Fixes#523Fixes#525
Properly set the selected cells for worksheets with frozen panes when
writing Xlsx documents. Beforehand, the saved Xlsx documents were
generating corruption warnings when opened in Excel.
Fixes#532Closes#535
The behavior is similar to what is done in LibreOffice. That means if there is a
comment it will be shown with a small indicator and the actual comment will be
revealed when mouse hover over the indicator.
Fixes#308Closes#310