Access File Formats

Access 2007 uses a new file format that supports a number of new capabilities. Access 2007 database files, which end with the .accdb file extension (e.g., Northwind2007.accdb), enable you to use these new capabilities:

  • Multivalued fields enable you to select multiple values from a list of acceptable choices.

  • Attachment data type enables you to store files, such as images or Word documents, as part of a database record.

  • Improved integration enables you to interact effectively with Windows SharePoint Services and Microsoft Office Outlook 2007. The new Access 2007 file system includes security capabilities that enable the 2007 Microsoft Office system programs to disable databases that contain programming code from an unknown source. These new security capabilities make it possible to integrate Access 2007 with Outlook 2007 and Windows SharePoint Services sites.

  • Append-only memo fields allow users to add data to a field but prohibit editing or deleting information previously entered into the field. Requiring users to record changes in an append-only memo field helps preserve data integrity and establishes a chain of events.

  • Improved encryption helps protect your database from intruders who attempt to gain unauthorized access to your data.

The Access 2007 file format doesn’t support database replication or the user-level security model, both of which were available in the Access 2003 file format. However, you can open a database in the Access 2003 file format in Compatability Mode, which enables you to use those capabilities if you absolutely must have them.

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