If i had to guess this would break thousands of obscure in-house excel sheets, crafted over decades, on which tens of thousands jobs and careers depend ;-)<p>Which i guess is why Microsoft never fixes even quite obvious bugs in Excel, for example like here: <a href="https://www.extremetech.com/extreme/313567-scientists-rename-genes-so-excel-wont-reformat-them-as-dates" rel="nofollow">https://www.extremetech.com/extreme/313567-scientists-rename...</a>