Excel comment box too small

[log69]

Hi, the gem works great, thank you.
The only important issue I've run into is that when I create a comment to a cell then the comment box appears too small on Excel, so the text flows out of it and cannot be read. Tested on Microsoft Excel 2016 and 2010. The code:
worksheet.write_comment( row, column, "this is the comment" )
Could you kindly give me any hint on how to solve it or workaround it?
Thanks a lot in advance.