File Extension Library


.89U File Extension

  • Developer by: Texas Instruments Inc.
  • Category: Various data Files

What are .89U files and how to open them?

Can't open .89U file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .89U file.

What is a .89U file extension?

.89U file extension is created by Texas Instruments Inc.. .89U has been classified as Various data Files.

.89U is TI-89 system update 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.

How to fix problems with .89U files

  1. You need to update the application that you normally use to open .89U files. Only the latest version of the software supports the current .89U file format
  2. You need to check the .89U file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)