I am using an Excel file as a database for a point of sales system. I only need to view the database using Office on one computer. All others only need to read/write to the file. Is there a way to read and write to XLS or XLSM files without installing Office? Changing the file type is okay as long as it can be opened in Excel and has all the same features as an XLS or XLSM file. Thanks in advance. Hunter   Edit: Solution found