CAH file format description

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

1 filename extension(s) found in our database.

.cah - Ulead Photo Explorer Thumbnail Cache

The CAH data files are related to Ulead Photo Explorer. The CAH file is a Ulead Photo Explorer Thumbnail Cache. Ulead Photo Explorer is a program designed to help you better manage your image and video files.

Ulead Photo Explorer
Data files
- / -
Ulead Photo Explorer Thumbnail Cache related extensions:
DisCryptor Encrypted Archive
Mifos Data Exchange XML Data
Sybase PowerDesigner XML Model Backup
iCal Application Layout Data
Norton Utilities Nprotect Database
Source Insight Workspace Data

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

Can't open a .cah 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 .cah file extension is often given incorrectly!

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

ach, ah, ca, cab, cag, caj, cam, can, cat, cau, ch, cha, cxh, dah, fah

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Trespasser Game Audio
Scitex Continuous Tone
AutoPlay Media Studio Splash Image
China Academic Journals Document
FastCAM Data

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 .cah file format, then write to us! >> CAH file