The first thing to say is that Save Page WE is designed to save HTML pages, not XML pages.

With Save Page WE 9.7 & 9.8, it was possible to save XML pages providing the 'new save method' option was enabled. Unfortunately, some problems were found with the 'new save method', so it was removed in Save Page WE 9.9, and it is no longer possible to save XML pages. Apologies for any inconvenience.