You can use automation tool which can collect the completed item to a file with timestamps for each completed task. On mac, hammerspoon is a good automation tool and on windows AHK can be used. But even for that you would have to manually select completed tasks and press one key(say F10) ..
Sorting or Archiving completed to-do's
in Evernote for Windows Requests (Versions 6.25.1 and under)
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You can use automation tool which can collect the completed item to a file with timestamps for each completed task. On mac, hammerspoon is a good automation tool and on windows AHK can be used. But even for that you would have to manually select completed tasks and press one key(say F10) ..