You have the following ways to delete the recording files:

1). You can go to the Evaer main workbench which lists all the recording files, and right click the recording file to delete it. But this way, you should delete the file one by one.

2). If you wanna have the recording files batch deletion, you can open the recording file folder and choose a batch of files to delete.

To open the recording file folder, please refer to open folder.