If you are using a PC the same should work. However sometimes Windows users will find the extension missing from the file name.
First, you must make your extensions visible. Find the folder named "File explorer Options" Go to the "View Tab" and uncheck 'Hide extensions for known file types', then click apply and OK.
The simplest solution for mac users is to rename your download. When your download appears as a .zip file, you can rename the file at the end from '.zip' to '.xlsx' this is changing its extension.
Thank you for reading this support article, if you have other questions surrounding exports and filings, please see this section of our support site: Administrators/Filings