vue `user_template_${new Date().getTime()}.xlsx`)

This code generates a unique file name for an Excel file, based on the current timestamp. The file name starts with "user_template_" and is followed by the number of milliseconds since January 1, 1970 00:00:00 UTC (also known as Unix time or epoch time). This makes it highly unlikely that two files will have the same name, even if they are generated at the same time. The ".xlsx" extension indicates that the file is in the Excel file format.