In the chat, you and other participants can send files, e.g. pictures, movies or documents. When you upload a file, a thumbnail image is displayed, so you can be sure that the correct file has been attached.
Once the file is sent, you can click on it to view it in large format.
Files sent in the chat are automatically saved both in the conversation chat and in the meeting view in the calendar, under the paper clip. To save a file sent in the chat, click on it and choose where to save it.