"This action won't work on multiple selections" error

I have encountered the error "This action won't work on multiple selections" on excel files created by this library. The steps to reproduce:

• Create an excel file with sticky columns and/or sticky rows
• Open the file in editing mode in excel and try to add a new worksheet, or copy the some cells to a different excel file

The issue seems to be caused by the use of sheetViews in source/write/views.js. I found a similar issue on a different library causing the same error: https://github.com/PydPiper/pylightxl/issues/50

I didn't get a chance to look further into it. But if I can I might be able to create an MR for it.