How do I change the extension of a file?

Question

I have a .zip file and I wnt to change in in a .jar file?

Answer 1

Go to Run on the Start menu and type cmd.
Navagate to the directory of the file you want to change the name of use cd.. to go down a directory or cd filename to go up a directory.
Once there, use the command "rename filename.extension filename.newextension"
Newextention should correspond to ".jar" to change to a jar file.

But the previous two posts are also true, this will only work if the file was misnamed originally, .jar and .rar files are in a different format than .zip. Unzipping and resaving as .jar or .rar compressed is the best method in this case. Try WinRAR it seemed to work well for me in the past.

terpyj

Answer 2

There is no way to change a zip file to a jar file. A zip is a compressed file that acts like an envelope and can hold anything. But before it can be used, it has to be decompressed (removed from the envelope). While a jar file contains in instructions for a java program.

You probably need to download a program like WinZIP (look for it at http://download.com ) and use it to open the Zip file and get whatever is inside it out. If the content of the zip is a jar (or other java related) files, then you may not have to do anything else to convert it.

Answer 3

Extract all the files from the ZIP file. Then, save them all again as a RAR file.

Try WinRAR, google for it.

Answer 4

.jar file is a Java ARchive file. your question is not clear. .zip file is compress format file. i think you can't convert from .zip to .jar file.