You can export time entries for a particular project (and its subprojects) from the Project screen using the Download All Time Entry Data button at the top of that screen. Right now there is no way to do that for all top level projects.
You can export time entries for a particular project (and its subprojects) from the Project screen using the Download All Time Entry Data button at the top of that screen. Right now there is no way to do that for all top level projects.