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Old 03-17-2014, 09:07 AM
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Working With Compressed (Zipped) Files

A compressed (zipped) file is a file that has been compacted to reduce the file size. Zipping is often used when emailing a large file or when downloading a large file from the Internet. Compressing an executable file reduces the file size making download times faster. Many vendors offer their setup files in a compressed format.

Compressing a file is also a way of grouping multiple files to act as one, creating a single folder that holds all of the files. For example is you have several documents you would like to email to someone you could attach each file individually to an email message but if you create a zipped folder all of the files would be contained in a single folder that you can then attach to the message and send.

Graphic files are not normally compressed. Bmp files may be the exception because they are non-compressed files originally. Other graphic files such as jpg and gif files use compression when the file is created so the file size is not greatly reduced by zipping those types of files.

Windows XP, Windows Vista, Windows 7 and Windows 8 have a built in compression utility. There is no need to install a third party software package when working with most compressed files. If you are working with a different type of compressed file such as tar, rar,gz, gzip, cab ,7z or some other format you may need to install additional software to work with the file.

Winzip: http://www.winzip.com/index.htm

7-Zip: http://www.7-zip.org/

Creating a Compressed Folder
1) Right click the file/files or folder you want to compress.
2) From the right click menu choose send to > compressed zipped folder.
3) A new zipped folder will be created in the same directory (folder) as the original file/files or folder.
4) The file name will be highlighted. Type a new name for the folder or leave the default folder name which will be the same name as the original file or folder with a .zip file extension.
Note: once the zipped folder has been created you can drag and drop other documents into the existing folder to add them to the archive.

Opening a Compressed Folder
1) Right click the compressed folder.
2) From the right click menu choose extract all.
3) The extract compressed zipped folder window will open.
4) Click the browse button if you want to choose a new location to extract the files to. By default the files will be extracted to the same directory (folder) as the original file.
5) Put a check in “show extracted files when complete” if you would like the folder containing the files to open when the extraction is complete. Click extract.
6) Another way to extract files from a compressed folder is to open the zipped folder. Right click the file or files you want to extract. Hold your mouse button down and drag the files out of the zipped folder into another folder or to the desktop. Let go of your mouse button and menu will open. Choose move here or copy here.

Password Protect a Zipped Folder in Windows XP
1) Open the zipped folder you want to password protect.
2) Click the file menu > add a password.
3) The add password window will open. Type the password twice. Click OK.
Note: If you open the password protected zipped folder and make changes to a file you must remove and re-add the password for the files to once again be secure. The files are password protected at the time of encryption. You must also remove and re-add the password if you add new files to the password protected folder.

Opening a Password Protected Zipped Folder in Windows XP
1) Double click the password protected zipped folder.
2) The folder itself will open without prompting for a password. When you open a file in the folder you will be prompted for a password. Type the password to open the file/files.
Or
1) Right click the zipped folder.
2) Choose extract all from the right click menu.
3) The password dialog will open. Type the password. Click OK.
4) The files will be extracted to a non-compressed folder in the same directory as the original compressed folder.

Password Protect a Zipped Folder in Windows Vista, Windows 7 & Windows 8
Windows Vista, Windows 7 and Windows 8 do not support password protecting a zipped folder. Rumor is that the password feature was removed because it did not offer adequate security. To password protect a zipped folder in Windows Vista, Windows 7 and Windows 8 you must install a third party utility. 7-Zip is a free utility for compressing, uncompressing and password protecting zipped folders.
1) Download and install 7-Zip.
2) Right click the folder you want to password protect.
3) From the right click menu choose 7-Zip > add to archive.
4) In the archive format drop down choose “Zip”
5) Under encryption type the password you want to use. Click OK.

Opening a Password Protected Zipped Folder in Windows Vista, Windows 7 and Windows 8
1) Double click the password protected zipped folder.
2) The folder itself will open without prompting for a password. When you open a file in the folder you will be prompted for a password. Type the password to open the file/files.
Or
1) Right click the zipped folder.
2) Choose extract all from the right click menu.
3) The password dialog will open.
4) Type the password. Click OK.
5) The files will be extracted to a non-compressed folder in the same directory as the original compressed folder.
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