WinRAR is a program for archiving and unpacking files in RAR format. To archive files using WinRAR, run WinRAR and navigate to the folder that contain the files you want to archive. Then, select the files and click the Add button.
To extract files using WinRAR, open Windows Explorer, and go to the folder that contains the archived file. Double-click the archived file to open it in WinRAR. The program displays the contents of the archive in its program window, and you can select the files you want to extract. Once selected, click the Extract button and enter the destination folder. Click OK to start the file extraction process.