You can use aoe2.net to download replay files of pro players and place it in savegame folder.
Step 1: Choose leaderboard > random map
Step 2: Select the pro player and then click their profile
Step 3: Click the download btn to download replay
Step 4: unzip the replay file and place it in the “savegame” folder is ok.
Remark: the replay may be unplayable after each patch.