|The following is a list of the more common file suffixes. We have also included a common question section at the foot of the page, along with links that may be able to assist you in handling a particular file type..|
Archiver compression file.
1. Q: Who can assist me?
If you are having a problem with a non-Microsoft product, you should contact the manufacture of the product.
If you are having a problem with a file downloaded from a web site, you should contact the web site. They can let you know the software you will need.
2. Q: What's a file extension?
A file extension is a group of 3 or 4 letters at the end of a file name. The extension
is generally separated from the file name by a period (or dot). For example, in
the file name RESUME.doc, the extension is "doc." The extension tells
you that the file is a particular type. In this example, a .doc file is a word-processing
document created with Microsoft Word or a Word-compatible program.
3. Q: Do I need a separate program for each file extension?
Sometimes but not always. Often programs that perform a similar function (e.g.,
word-processing programs, graphics editing programs, or accounting programs) can
be used with more than one file extension. For example, if you have a file called
BANNER.gif, there are dozens of graphics programs that work with the file extension
"gif." All you need is one of these programs to be able to view and
edit .gif files.
4. Q: I used to be able to open these files? What happened? Why can't Windows open them now?
A couple of things might have happened. Assuming that the file has not been emailed
to you, then the most likely answer is that you once had a program on your computer
that was able to work with this file extension, and now the program is gone. You
might have uninstalled the program or deleted it in some other way. Or you could
have installed a new program on your computer that supports this file type. New
programs often make themselves the default viewer for certain file types. If you
later uninstalled the newer program, you might still have a program on your computer
that will open the file type, but it is no longer associated with those files
because of the newer program that was once installed. To fix this problem, just
right-click the file that you want to open, and choose the appropriate program
from the Open With choices.
5. Q: What is the impact of this feature on my privacy?
None. When you click "Auto-Lookup," the file extension (".zip"
for example) is sent to this Web site in order to start a search for supporting
software and information. No personal information is sent.
6. Q: The file extension I am looking for is not listed here. What should I do?
We recommend visiting CKNOW's FILExt or UK
Technical Support. This site will be updated over time with the most commonly
used file extensions. This web site only lists the most commonly used file extensions
because of the costs involved with maintaining this web site in more than 20 languages.
7. Q: Why doesn't Microsoft Windows automatically download and install the software?
Software downloaded from the internet can contain viruses or could cause security
problems. It is important that you know who manufactures the software and use
that to decide if you want to download the software. Obviously too, most software
products require purchase, and can involve substantial cost.
8. Q: How can System Administrators automatically install software?
System Administrators can use Microsoft deployment technologies to specify which
applications should be installed for certain file extensions. Computers using
this deployment technology will automatically install the software the first time
the user opens a file with this extension. For more information, see ZAP files
in the Windows 2000 or later resource kit under Desktop Configuration Management,
Software Installation and Maintenance, and Windows Installer Technology.