To send a file you can just drug the necessary file to the contact or to the chat. Also you can choose the necessary point in the contact right-click menu.
The opened dialog-box allows to choose a file and the transfer method. After pushing "send" the recipient will get the confirmation request and, if he replies positively, the transfer will start:
If the file has been sent to you, you also will receive the confirmation request and will be able to choose where to save the file or deny the receipt.
The button "open folder" allows to go quickly to the saved file. The default folder for incoming files can be chosen in preferences.
