Solution
This error is due to a bitness difference between the Operating Sytem/ LabVIEW version and the provider. To resolve this, you need to :
- uninstall the chosen provider (eg: I you have LabVIEW 32b and Provider=Microsoft.ACE.OLEDB.12.0 64b)
- Install the right provider with the corresponding bitness (eg: Provider=Microsoft.ACE.OLEDB.12.0 32b)