CLD file format description

Many people share .cld files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cld file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cld files.

2 filename extension(s) found in our database.

.cld - ClamAV Local Database

The CLD data files are related to ClamAV. The CLD file is a ClamAV Local Database. ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats.

Data files
- / -
ClamAV Local Database related extensions:
ClamAV Binary Signature
ClamAV Virus Database
ClamAV Extended Signature Data

.cldlyr - Terragen Cloud Layer Data

The CLDLYR data files are related to Terragen. The CLDLYR file is a Terragen Cloud Layer Data. Terragen is a scenery generator program for Microsoft Windows and Mac OS X developed and published by Planetside Software. It can be used to create renderings and animations of landscapes.

Data files
- / -
Terragen Cloud Layer Data related extensions:
Terragen Atmosphere Landscape Data
Terragen Cloud Layer Data
Terragen Surface Data
Terragen Surface Map Data
Terragen Terrain File
Terragen Clip File

Naturally, other applications may also use the .cld file extension. Even harmful programs can create .cld files. Be especially cautious with .cld files coming from an unknown source!

Can't open a .cld file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cld file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

c1d, cd, cdl, cid, ckd, cl, clc, cle, clf, clr, cls, clv, clw, clx, cmd

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

BlackBerry COD Archive
Maxon Cinema 4D Plugin
CDSpace Disk Image
WindLDR Binary PLC Data
Abbyy FineReader Dictionary File

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .cld file format, then write to us! >> CLD file