Categories Computer Science Microsoft Excel 2019 files have a default extension of——? Post author By thelooknow Post date March 11, 2022 No Comments on Microsoft Excel 2019 files have a default extension of——? A. .Xlsx B. .Xls C. .excel D. .123 Xlsx (Answer) ← Half of a byte is called? → File Management is responsibly of—–? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.