On the Campaign Reach tab, you can view account-level aggregated data by default, which combines audience data from multiple campaigns. There are three ways to analyze your post-campaign audience insights data:
Use the drop-down menu to search and select a campaign name/ID, ad group name/ID, or ad name/ID to filter your audience insights. The system shows account-level aggregated data by default.
View the aggregated post-campaign data by Age & Gender/Country/Device OS/Interest.
Select Dimensions (Age, Gender, Country, Interest, etc) to see the details and click Export All to download the data into Excel for easy editing and further analysis.
Learn more about audience insights.