BUG:read_excel no default style openpyx1
i receive an excel attachment via outlook, after saving the file and running the python script the following warning is returned.
"UserWarning: Workbook contains no default style, apply openpyxl's default" if the warning is ignored then read_excel  report 2 header records when there are 7 header records.

if I open the file via Excel and save the file with no changes, some dialog is shown but it is display so quickly I am unable to determine what excel is doing.  

when I re-run the python script no exceptions occur and everything works as expected.

I have upgraded pandas from 1.2.1 to 1.2.3
i have upgraded openpyxl  from 3.0.6 to 3.0.7
issue remains

ry:
    df = pd.read_excel(Filename, header = 7) 
    print('no issues reading excel file')
except Exception as e:
    print('Excel read error: ', e.args[0])    
