HexData Import & Export for Joomla Modules

It's an extension to HexData component. You need HexData to make it work. You can use it to add / update data to Joomla modules from a CSV file. You can also export your module data into a CSV file using this extension. It's built specifically for Joomla module, hence provides you a much simpler way to manage your data. It can also be used to migrate your module data from one site to another site.