File extension Details of CSV, CAT, CTT, CTF, CWS, CDF, CDF, CWZ, CAP

Name:	CSV
File Type:	Comma Separated Values File
Popularity:	5
Category:	data
File Description:	Contains data sets separated by commas, where each new line represents a new row; values can be organized into cells by a spreadsheet program or inserted into a database.
Open Programs:	Mac OS Microsoft Excel or other spreadsheet program Viewable with a text editor Windows Microsoft Excel or other spreadsheet program Viewable with a text editor

Name:	CAT
File Type:	Advanced Disk Catalog Database
Popularity:	3
Category:	data
File Description:	Contains a catalog of data from various media types including hard drives, network drives, floppy disks, optical discs (DVDs, CDs, etc.), ZIP and JAZ disks, etc.; used for keeping track of information stored within a collection of media
Open Programs:	Windows Elcomsoft Advanced Disk Catalog (ADC)

Name:	CTT
File Type:	Messenger Contact List
Popularity:	3
Category:	data
File Description:	Stores a list of contacts and groups used by the MSN/Live Messenger instant messaging program; saved as a text file and formatted in XML; can be exported from MSN Messenger and imported by another user. Contacts saved in a CTT file can be imported into Messenger by selecting File->Import Contacts from a Saved File.
Open Programs:	Windows Microsoft MSN Messenger or Live Messenger Any text editor

Name:	CTF
File Type:	WhereIsIt Catalog   (Most common)
Popularity:	3
Category:	data
File Description:	Contains a catalog of a media collection; may include CD-ROMs, DVDs, audio CDs, hard drives, removable drives, network drives, and other storage media recognized by Windows
Open Programs:	Windows WhereIsIt

Name:	CWS
File Type:	Claris Works Template
Popularity:	3
Category:	data
File Description:	Template for a Claris Works document, such as a word processing, drawing, or spreadsheet file
Open Programs:	Mac OS Claris Works or AppleWorks

Name:	CDF
File Type:	Content Definition File   (Most common)
Popularity:	4
Category:	data
File Description:	XML-based data format designed for storing and sharing abstract Enterprise Content Management (ECM) content and metadata; can be used to exchange content across repositories and organizations. The CDF format was originally defined as part of the Content Transformation Services (CTS) framework by the Enterprise Content Management Group (ECMG).
Open Programs:	Windows ECMG Reader ECMG Explorer

Name:	CDF
File Type:	Common Data Format
Popularity:	2
Category:	data
File Description:	Scientific data format that can include scalar, vector, and multi-dimensional data arrays
Open Programs:	Windows Unidata NetCDF NcView

Name:	CWZ
File Type:	Circuit Wizard File
Popularity:	2
Category:	data
File Description:	Circuit design created with Circuit Wizard, a printed circuit board (PCB) design and simulation program; contains a circuit layout, including components and connections, as well as voltage and electrical current information.
Open Programs:	Windows New Wave Circuit Wizard

Name:	CAP
File Type:	Packet Capture File
Popularity:	3
Category:	data
File Description:	Contains packets collected by a packet sniffing program; saves raw data captured over a data transmission; also called a trace file or bone file and is used by multiple packet sniffer applications.
Open Programs:	Mac OS Wireshark Windows Netscout Sniffer PacketBone BoneLight Klos PacketView Pro Wireshark Linux Wireshark

Name:	CVN
File Type:	CineVision Encoding Session
Popularity:	3
Category:	data
File Description:	Disc encoding session created with Sonic CineVision, a CD/DVD and Blu-ray disc encoding program; contains a list of media files to be burned to a disc, as well as their titles and start and end times.
Open Programs:	Windows Sonic CineVision