The file format that produces a lock-down version of an access database is called; ACCDE
<h3>How to Identify Access Database?</h3>
ACCDB files are the default Microsoft Access database format in Access 2007 and later versions while the ACCDE format is a read-only, compressed version.
Now, the file format that produces a lock down version of an access database is called ACCDE file which is a Microsoft Access Execute Only Database file used to protect an ACCDB file.