Download Microsoft.ace.oledb.12.0 Provider For Both 64-bit __full__ -

After downloading and installing the provider (or both), verify that it works.

The complexity arises because Microsoft distributes : one for 32-bit (x86) and one for 64-bit (x64). You cannot run both side-by-side by default. download microsoft.ace.oledb.12.0 provider for both 64-bit