You can open the 32-bit access file in Office 64-bit excluding the following situations:
Databases that have had their source code removed (such as .mde, .ade, and .accde files) cannot be moved between 32-bit and 64-bit editions of Office 2010. Such databases that are created by using 32-bit Office (any version) can be used only with 32-bit
Office, and a database that is created on 64-bit Office can be used only on 64-bit Office.
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