Issue #548 resolved
Hey guys. Thanks for awesome work!
I've tried create a chart and got
'ascii' codec can't encode characters in position 0-9: ordinal not in range(128) Exception Location: .../openpyxl/utils/__init__.py in quote_sheetname, line 182
The string that could not be encoded/decoded was: Количество пост
Tried to avoid it but got into same error with reference.py line 72