CZI file format description

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

1 filename extension(s) found in our database.

.czi - Carl Zeiss Image Data

The CZI graphic files are related to ZEN Imaging Software. The CZI file is a Carl Zeiss Image Data. The CZI file format has been developed by ZEISS to specifically meet the requirements of imaging in microscopy.

ZEN Imaging Software
Graphic files
- / -
Carl Zeiss Image Data related extensions:
Psion Series 3 Bitmap Icon
ZX Spectrum Attributes Image
Google Talk Avatar File
Apple QuickTake Picture
FM Towns Bitmap Image
S3TC Compressed Texture Data

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

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

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

cai, ci, csi, cxi, cz, dzi, vzi

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ContentServ CS EMMS Include
Nintendo 3DS Executable Image
CR10X EdLog Source Code
SeeYou Flight Data
Czech Language Info 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

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