Microsoft. Ace. oledb.12.0 provider not registered on the Local Computer

When accessing the Excel data source, Microsoft. Ace. oledb.12.0 is not registered on the local computer.Program
1. Make sure that the Microsoft. Ace. oledb.12.0 driver is installed.

Http://download.microsoft.com/download/7/0/3/703ffbcb-dc0c-4e19-b0da-1463960fdcdb/AccessDatabaseEngine.exe
2. In vs, right-click the project --> properties -- and change the target platform generated to x86.

If the above two methods still do not work, use the third method.

3. In the corresponding IIS application pool, right-click "Set application pool default properties", right-click "Advanced Settings", and "enable 32-bit applications", and set it to true.

Problem: Microsoft. Ace. oledb.12.0 provider is not registered on the Local Computer