Como Hacer Que Una Tabla De Excel Se Actualice Automaticamente

For years I've created folders within dropbox and within the public file of dropbox at the end of the year when I close out files I transfer them to a thumb drive. I cannot do this anymore due to the error that says, "are you sure you want to copy these files without it's properties?' AND then if I do nothing exists within the folder. PLEASE HELP? I've been at this for three days and paid someone overtimes trying to take care of this issue.