Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files.
An MP3 or JPEG file contains data which has already been subjected to lossy compression. Consequently, compressing such a file will save very little space on the disk. This saving usually comes from compressing metadata (such as MP3 tags or EXIF tags), which don't take much space to begin with. How do I compress files to make them smaller? » Files & Sharing » Windows » Tech Ease: One way to store more data when you are low on hard drive space is by using compression to make the files and folders you already have on the drive take up less space. In the past, utilities such as Winzip were used for this purpose, but Windows XP has a built in compression utility. Text file (txt or other asci-based file) can zip to about 30% of there size, other binary - base file hardly change after zipping.Eg: zip.doc.jpg.dll.exe is useless! Classic dice games. This tool is intended to give an indication of the amount of space a given video format will take up on disk. The actual space taken up may differ slightly due to embedded audio, differing frame sizes and aspect ratios, and inter-frame compression / pulldown. Total space: 10.99 GB Link to this calculation. Create a password-protected ZIP file in OS X. To create a password-protected Zip file in OS X, you can use the Terminal and you don't need to download any other programs. First, place all of the files that you want to compress into a single folder, and then rename that folder to the name that you want your ZIP file to have. Open the Terminal.
To zip (compress) a file or folder
Locate the file or folder that you want to zip.
Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder.
A new zipped folder with the same name is created in the same location. To rename it, press and hold (or right-click) the folder, select Rename, and then type the new name.
To unzip (extract) files or folders from a zipped folder
Locate the zipped folder that you want to unzip (extract) files or folders from.
Do one of the following:
To unzip a single file or folder, open the zipped folder, then drag the file or folder from the zipped folder to a new location.
To unzip all the contents of the zipped folder, press and hold (or right-click) the folder, select Extract All, and then follow the instructions.
Notes:
To add files or folders to a zipped folder you created earlier, drag them to the zipped folder. How long to install os x yosemite.
If you add encrypted files to a zipped folder, they'll be unencrypted when they're unzipped, which might result in unintentional disclosure of personal or sensitive information. For that reason, we recommend that you avoid zipping encrypted files.
Some types of files, like JPEG images, are already highly compressed. If you zip several JPEG pictures into a folder, the total size of the folder will be about the same as the original collection of pictures.
Compressed 'zip' files are widely used as they pack one or more computer files into a single file or folder which takes up less space. It can be a very useful way of sending or storing files. You'll need to unzip them to extract the contents inside. Our short guide explains how to do this.
Jack Schofield | 9th September 2010
Zip files are very common on the internet. You can recognise them because they all end with the ‘.zip' file extension.
What zip does
Zip is an archiving system that packs together one or more computer files into a single file or folder that takes up less space than the originals. If you want to email someone a collection of files, it's easier to zip them all into one file first. If you want to keep files private, archiving them allows you to encrypt them and add a password to protect them.
Although zip may not be the best archiving system, it's one that most operating systems know how to handle. The format became ubiquitous in the 1990s thanks to the popularity of the WinZip program, which is now owned by Corel.
How to zip or unzip a file
If you have a zip file and you want Windows XP to unzip it, right-click the file and select 'Extract All'. This should bring up the 'Compressed (zipped) Folders Extraction Wizard'. Cash express slot machine. To extract the file or files, click ‘Next' and select a directory or folder where the wizard can send the files.
If you want Windows XP to zip a file or a folder, right-click it and choose a ‘Compress' item. Paf bonus code. Mac OS X works in much the same way, calling it ‘Archive' instead of ‘Compress'.
How Much Space Does A Zip File Savers
Alternatively, you can right-click inside Windows Explorer, select ‘New', create a zip file, and give it a suitable name. Next, use your mouse to select the files or folders you want to compress, hold down the left mouse-button, drag the files to your zip file and drop them on top of it. Zeus big win. Repeat this as many times as you like - Windows will add the files to your zip file.
You can also use 'drag-and-drop' to extract files from a compressed folder by dragging them to a different folder or to your desktop. How to import imovie project. Windows will uncompress them automatically.
Compress to save space
People often compress files to save disk space. Some files can be compressed a lot, and this is true of Microsoft Office's old Word .doc and PowerPoint .ppt files. (The new Microsoft Office file formats already have zip files inside.)
Some types of file cannot be compressed much more, including MP3 music files and photos in the JPG (jpg) format. Sometimes 'compressed' folders of these files can be slightly bigger than the originals.
Most people prefer to download a separate archiving program - these are more powerful and easier to use. The free ones for Windows include 7-Zip, PeaZip and IZArc. Most programs, including WinZip, will handle many different archiving formats.
The shareware program WinRAR is efficient and is often used for compressing multimedia files including movies. It can handle the RAR, ZIP, CAB, ARJ, LZH, ACE, TAR, GZip, UUE and ISO formats, amongst others.
Jack Schofield
How Much Space Does A Zip File Save
Jack Schofield is a technology journalist and blogger who covered IT for the Guardian from 1983 to 2010. Before specialising in computing, he edited a number of photography magazines and books.
