Your Instant Client architecture (64-bit) must match your application's architecture (e.g., Python 64-bit, Excel 64-bit).
If you extract instantclient-basic...zip first, you’ll get a folder like instantclient_19_22 . Then extract instantclient-sqlplus...zip into that same folder, overwriting any existing files. Oracle 19c Instant Client Download For Windows 64 Bit
After installation, you may need to configure Oracle 19c Instant Client to connect to your Oracle database. This typically involves: Your Instant Client architecture (64-bit) must match your