.mdb is the file extension used by Microsoft Office's Access program and it marks a file that is a database.
Project Excel PowerPoint Access
Click on the related link below to see the applications that use MD file extensions.
Access
That would be layer 7 - the application layer.
An application is a program (generally an executable file .exe) that can be run on your system. Windows Media Player would be an application, as would Internet Explorer.
A file with a .cfg extension is usually a configuration file. The file will be used by an application to load all the configuration settings. There is no standard format for a .cfg file and how it can be modified will differ from application to application.
.txt, or a text file can always be opened by an application.
.txt, or a text file can always be opened by an application.
The application will close immediately. As your file has been saved and is up to date, there is no need for the application to ask if you want to save it. This would happen if the file had not been saved.
You can find out the file type by searching on http://filext.com/ and then you can see what programs you can use to open that file. Hope this helps.
True
Adobe Acrobat
an application runs a series of commands. a file is data stored in some retrievable way.