How to update NLS lang in Toad Base version

Hi,

I'm using Toad Base version 14.0.75.662

I need to update my NLS from ENGLISH_UNITED KINGDOM.WE8MSWIN1252 to AMERICAN_AMERICA.WE8MSWIN1252.

Please suggest.

Welcome to the Toad for Oracle community.

Toad users that have the DB Admin module added to their Toad would be able to change NLS settings. Otherwise, you'll need to set your NLS value via the Oracle parameter file, or you can use ALTER commands to change the language for your session. See some guidance here from Oracle.
Hope this helps.