>> ZZO file

ZZO file format description

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

1 filename extension(s) found in our database.

.zzo - ISIS Control Unit Data

The ZZO data files are related to ISIS. The ZZO file is an ISIS Control Unit Data. ISIS is a full hydrodynamic simulator for modelling flows and levels in open channels and estuaries and is at the heart of the system.

Data files
- / -
ISIS Control Unit Data related extensions:
ISIS Schematic Capture Data
ISIS GIS Diagnostic Data
ISIS GIS Visualiser Schematic Data
ISIS Event Data File
ISIS Control File
ISIS Initial Conditions Data

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

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

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

zz, zz0, zzk, zzl, zzp

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

MultiView Configurable Pop-up Menu
ZZT Game Data
Zzip Compressed Archive
NetBSD ZZ0 Interface Configuration
MultiView Keyboard Mapping

Operating systems currently supports the following operating systems:

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

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