This sounds like a question that you might want to reach out to the Central Bank for to discuss methods for obtaining the data or maintaining a data source. Tableau Desktop can connect to a myriad of data sources.
See all supported data sources here: All Technical Specifications | Tableau Software
I also found the following resource from the Google Product forums that might assist with the issue: Google Groups
For some addtional resources on connecting to data from Tableau Desktop please see the below:
If available for the database Tableau has an ODBC connector can be used to most data sources that have an ODBC driver. I am including several resources for the ODBC connection below. There can sometimes be limitations when using the ODBC connection versus a named connection that is listed in the explicitly on the data source page.
Also, if the data is available over HTTP, the connection to data source can be made with the WDC(Web Data Connector). I have included several resources for using the Tableau WDC below. The first link is to the Tableau Online Help on the WDC feature. Additionally, I included links to the specific section in the community and the Tableau GitHub section on the WDC.
Another option is to use the Tableau SDK, to create a .tde file of the data set to then be used in the Tableau Desktop program. Additional resources and information can be found below.
I hope these resources help!