Using partials corrupts the `xlsx` file.

[henrikbjorn]

Having a controller template doing

render 'statistics/shared/workbook`

and the _workbook partial being something like:

book = xlsx_package.add_worksheet
sheet = book.add_worksheet(name: "something")

sheet.add_row ['row', 'boat', 'show']

Makes the generated xlsx file corrupt. Moving the partial contents to the template directly and the file is not corrupt and work as it should.

[straydogstudio]

@henrikbjorn Are you directly rendering a partial without a regular template?

[henrikbjorn]

Nope, i have a regular template which is rendering a partail. To share the xlsx generation I have a index template, a show template etc.

[straydogstudio]

Partials are used regularly in our tests without issue. Can you share gem versions for rails, caxlsx, caxlsx_rails? Can you duplicate it in a bare bones rails application?