Files with 89U extension are Misc Files. The 89U file format was developed by Texas Instruments for their TI-89 calculators. These files upgrade the operating system on TI-89 devices. The most popular...
Files with 89U extension are Misc Files. The 89U file format was developed by Texas Instruments for their TI-89 calculators. These files upgrade the operating system on TI-89 devices. The most popular software that opens 89U files is TI Connect from Texas Instruments.
To open a 89U file on Windows, right-click it and choose “Open with”>”Choose another app”. Select the app to open 89U files and check “Always use this app”. On Mac, right click the 89U file and click “Open with”>”Other…”. Choose the app and check “Always Open With”.
If a 89U file can’t be opened, check that the correct software is installed. The file extension may also be misspelled. Programs that support 89U files include TI Connect.
The 89U file extension can be used by various programs, not just TI Connect. Be cautious opening 89U files, especially from unknown sources, as they may contain malware.
TI Connect