Impossible to add a predefined chart style to charts created with openpyxl
*Created originally on Bitbucket by [laurent chriqui](https://bitbucket.org/%7B787a8e54-4b52-422e-9cae-0df488d00b89%7D/)*
I use a script to create a chart and add a title to the chart. The file opens well in excel but when I try to apply a defined style to it, it corrupts the file which can no longer be saved.
If I delete the title in excel I can then save the file successfully.
Attached a sample script and resulting excel file.
*Attachments:* [scratch_4.py](/uploads/50413b161fe902bb4183831a417ca1aa/scratch_4.py)[SampleChart.xlsx](/uploads/65332c7ba93ba50d1d51f8068b2a36db/SampleChart.xlsx)
issue