The connector is a part of Xeelo DX that can work with a specific data source. For example, File Reader connector allows you to read from file, File Writer connector allows you to write to file and MS SQL connector allows you to read and write within an MS SQL database.
The connector must be installed before the first use. This can be done by using Connector Repository which is located in Xeelo DX main menu. After opening the Connector Repository, you can simply search for the desired connector, select its version and press the Install version button.
Once the connector has been successfully installed, it can be found in Connectors in the Xeelo DX main menu.