Bulk Import of resources

Hello Team, This is a query regarding the resource identification process through which any agent/administrator will be added to a queue/access group; currently it is being done through resource directory and it is done manually. But we have a bulk requirement of employees being tagged as resources for a specific access group and we do not have the time to do it one by one each. We tried using import management but it is failing as most of the variables are not getting matched with the column/data items. Kindly request you to arrange an OWC immediately for this as