The ending PL indicates a Perl script. Perl is a programming language that is processed by an interpreter and not compiled.
It has a long history of development and is widely used today. Perl scripts are used for administration, network programming, as CGI script on web servers, but also in financial applications and bioinformatics. Wherever large amounts of data, primarily text, are to be processed, eg When evaluating logs, Perl is the language of choice.
The scripts can be edited in any text editor, but an editor with syntax highlighting (highlighting) is preferable. This recognizes the language components and displays them in a structured and color-coded manner.
But there are also complete development environments (IDE) for Perl.
Most often resolving problems with opening PL files is very simple. Just install an appropriate program that supports such files. All of the listed programs support PL files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of PL 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 PL 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 Perl applications is not on the list, select "Browse" option in order to manually locate the directory where Perl has been installed.
Sometimes problems with opening PL files may not lie with the application itself, but can arise due to other causes, such as: