As Basse said.
Hint: When you look for the scenario folder, look from within the game. Start DE, open the Editor, open ‚Edit scenario‘. The in-game list of scenarios will appear. Below that list there is a button the says „Open Scenario Folder“. That folder will then open in Windows, outside of the game. You can now copy your scenarios into it.
However, not all scenarios will work well after being converted to DE, at least not without some editing.
In quest-type scenarios, previously narrow paths may be blocked because some editor trees have a larger grid in DE.
Victory conditions tend to get messed up when you transfer scenarios from AoE or RoR. This means e.g. if you play some of the old scenarios/campaigns in DE you might instantly get a „You have been defeated message“ when you start playing the scenario.
I transferred most my own old AoE and RoR files to DE. However, I had to do major fixes and revisions to make them playable.
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