You can't without using a program, which would easily take 10 years to get the password, even that wouldn't guarantee a successful password. The more characters the password has, the more years it will take. WinRAR has AES, Advanced Encryption Standard, with 128 bit key length.
There are several tools available that can help you in cracking the password of winrar,file I know its time taking but it what more I can say it worth.
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You can do it through the options when saving the file.
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Right click on th file. Select open with winrar and the password should be displayed in the window on the right.
That's not possible, because the password is used to encrypt the data inside the WinRAR archive. The only way to change the password, is to extract the data from the current WinRAR archive and then to create a new WinRar archive with the new password.
You can't do that. If the owner of the RAR file put a password for security, you can't open it. You'll need to ask the owner of the file for the password or for him to give you another version without the password.
If you do not have the password, then you cannot open the file. You may need to open it in Excel and then disable the password, and then go back to Works and open the file.
You can use WinZip or WinRAR to extract the files. Files with the asterisk also require a password.
You must first compress your files by zipping them or by using a program such as WinRAR to put a password on them. To Zip them, right click on the files you choose and click Send to, Compressed file. Under the Security tab, create the password you choose. As it compresses, it adds the password on it.
Right click the file, go to Properties -> security tab -> advanced there are a plethora of choices. Put one choice and put a password. You can also encrypt it. Best is to zip in with Winzip or Winrar and then protect it via password.
right click on the file you want to move inside winrar then click add to rar, Or if you want to be remove outside winrar right on file then click extract.