Converting an MDB file into an MDE file makes the database more secure and enhances its performance. Users cannot edit or make any changes to forms or reports or VBA code saved in the database. Conversion of MDB file into MDE file is very simple and useful feature of MS Access. On the Tools menu bar of your database, go to Database Utilities and clickMake MDE File to save it as an MDE file. This will hide all VBA source code to prevent any editing to it, though it will run all the same; compile all the modules; and compact the database. But you can still edit tables, queries and macros in your MDE files. To make any changes to forms, reports and VBA code, you will have to revert back to the original MDB file, save changes there, and convert it into MDE file once again. You need to follow the same procedure to upgrade an MDE file’s version to a higher one. That’s why it is recommended that you always keep a copy of the original MDB file for future use.