Script (SCR) files are used to automate repetitive tasks by executing commands and command options in a specific sequence.
Script files are ASCII text files with the file extension .scr and can be edited using a simple text editor such as NotePad on Windows or TextEdit on Mac OS.
When transitioning to the latest release, existing script files should work unless they use commands or system variables that have been deprecated from the AutoCAD-based product. Typically, changes to a command do not impact the execution of scripts because of the way changes are implemented to not affect scripts or AutoLISP files. Copy your existing SCR files to one of the support search paths already defined for the AutoCAD-based product or add the location of your SCR files to the Files tab of the Options dialog box to use then in the latest release.