Reproduce steps:

1. load the attached file "hyperlink-color.xlsx"
2. change A2's text color to red
   • it should be changed but not.
3. select A3 and click "clear style" from toolbar button
   • it should be changed to black text but not.
4. export and open such file from Excel
   • the result in file is correct, A2 is red and A3 is black text color.