Take care when you are closing open windows, if you close the Database window, you will close the whole database. Access saves data as you enter it, so you will not lose any work. And if you have been working on defining an object,
Access will check with you about saving changes before closing. If you do accidentally close the database, just open it up again and continue working.
The following features are no longer available, as of Access 2007:
Designing Data Access Pages (DAPs)
Microsoft Offi ce XP Web Components
The UI for import and export in older formats
User-Level Security and Workgroup Administrator
The following features are no longer available as of Access 2010:
Calendar control (mscal.ocx)
ISAM support, including Paradox, Lotus 1-2-3, and Jet 2.x or older
Opening Data Access Pages (DAPs)
Replication Confl ict Viewer
Snapshot format for report output
What Happens When a 2007/2010 MDB Is Opened by Prior Versions
Access 2010 and 2007 introduced a multitude of new features available to both the MDB and ACCDB file formats. When working with multiple versions of Access, it can be confusing to keep
track of what will work for each version. The following table lists the new features and how they will behave in prior versions of Access.
New features for Access 2007 or 2010 MDB fi les are also available for ACCDB fi les, but the reverse is not always true. Features that are available for ACCDB files but not for 2007 or 2010 MDB files are denoted by the statement
"Not available to MDB fi les; only available in ACCDB fi le format."
ACCDB file formats: Many Access databases contain hundreds or even thousands of tables, forms, queries, reports, macros, and modules. With a few exceptions, all the objects in an Access 2016 database reside
within a single file with an extension of ACCDB or ACCDE. Access databases can also have an extension of MDB or MDE. Databases with these extensions are backward-compatible with Access 2003 and prior versions.