This can be very useful when using the external applications, i.e., programs that are not part of the CLC workbench framework but that can be run using the same reference data.
To export a reference data set for external applications, you cannot use the Export button from the Reference Data Manager (that would export data set as CPD files), but the Export tool to export the data in the relevant format (VCF, FASTA, etc).
For example, if the Reference Data element "Clinvar" already has been exported, then there might be a folder called /homo_sapiens/clinvar/20131203 with the file Clinvar_20131203.vcf If the export is invoked again, then the folder will contain two identical files with difference names: Clinvar_20131203.vcf and Clinvar_20131203.1.vcf. The second file will not be used.
No special permissions are required to export reference data, but administrator rights are required to delete reference data. If it becomes necessary to delete exported reference data, an administrator, super user, or some user with administrator rights, must do this. Deletion of exported data has to be done through the operation system, it cannot be done through the Workbench, nor the CLC server.