>> 89K file

89K file format description

Many people share .89k files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .89k file can be edited, converted or printed with. On this page, we try to provide assistance for handling .89k files.

1 filename extension(s) found in our database.

.89k - TI-89 Application

The 89K other files are related to TI-89. 89K file is a TI-89 Application. The TI-89 and the TI-89 Titanium are graphing calculators developed by Texas Instruments. They are differentiated from most other TI graphing calculators by their computer algebra system, which allows symbolic manipulation of algebraic expressions.

Other files
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TI-89 Application related extensions:
TI-89 Graph Database
TI-89 Data
TI-85 Lab Report Data
TI-89 String Data

Naturally, other applications may also use the .89k file extension. Even harmful programs can create .89k files. Be especially cautious with .89k files coming from an unknown source!

Can't open a .89k 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 .89k file extension is often given incorrectly!

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

89l, 89m, 89u

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

TI-89 Calculator List Data
TI-89 Calculator Matrix Data
TI-89 Calculator OS Update Data

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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