A BAT file is a batch file called a batch file. Probably the best-known BAT file may well be the autoexec.Bat, which has been used since MS-DOS to Windows 98. Batch files are mainly used for repetitive tasks.
Although a BAT file behaves like an exe (double-clicking it starts), it's actually just a text file with a different extension. This contains command scripts that are processed by the command line interpreter. If you double-click a BAT file, the window for opening an MS-DOS window appears, where text files can be edited while processing the BAT file. This is the command line interpreter.
Even if the possibilities of a batch script are limited, many everyday tasks can be performed with BAT files, above all file operations and network tasks, but also shutting down the computer or re-registering a user are possible.
Note that you should never run BAT files from an unknown source. On the one hand they can contain viruses or malicious code and on the other hand batch scripts can also delete files or format the hard disk. A look with a text editor in such a file is definitely useful. Especially when such commands as format, ren or del are in it is advised to be careful.
Most often resolving problems with opening BAT files is very simple. Just install an appropriate program that supports such files. All of the listed programs support BAT files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of BAT files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate BAT files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Parallels Desktop applications is not on the list, select "Browse" option in order to manually locate the directory where Parallels Desktop has been installed.
Sometimes problems with opening BAT files may not lie with the application itself, but can arise due to other causes, such as: