.89U File

.89u is TI-89 system update file

Key Features: .89U File Extension

Features	Description
File Extension	.89u
Format	N/A
Created by	Texas Instruments Inc.
Category	Various data

What's on this Page

How to open:
How to convert:

What is an .89U file?

File extension 89u appears to be related to special firmware update files for TI-89 graphics calculators from Texas Instruments. Most likely loaded through TI Connect or other management tool for TI calculators.

How to open:

These files are only used to upgrade graphics calculators from Texas Instruments and nothing else.

How to convert:

Any conversion for .89u files seems highly unlikely.

Texas Instruments Inc.

Various data

N/A

How to solve problems with 89U files

Associate the 89U file extension with the correct application. On :
Windows: Right click on any 89U file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.89U files". Mac: Right click (or Ctrl-click) the 89U file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
Update your software that should actually open .89U is TI-89 system update file. Because only the current version supports the latest 89U file format. Search, therefore, e.g. on the Texas Instruments Inc. manufacturer website after an available .89U is TI-89 system update file update.
To make sure that your 89U file is not corrupted or virus-infected, get the file again and scan it with antivirus software.