The File Extensions Database

.8CU File Extension

  • Developer by: Texas Instruments
  • Category: System Files

What is an .8CU file?

.8CU is TI-84 Plus C Operating System File

Operating system file used by TI-84 Plus C Silver Edition graphing calculators; contains a software update used to update the upgradable operating system.

NOTE: The TI Connect software can be used to update your TI-84 Plus C Silver edition calculator.

Programs that open TI-84 Plus C Operating System File
Texas Instruments TI Connect CE
Texas Instruments TI Connect CE

How to solve problems with 8CU files

  • Associate the 8CU file extension with the correct application. On :
    Windows: Right click on any 8CU file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.8CU files". Mac: Right click (or Ctrl-click) the 8CU 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 .8CU is TI-84 Plus C Operating System File. Because only the current version supports the latest 8CU file format. Search, therefore, e.g. on the Texas Instruments manufacturer website after an available .8CU is TI-84 Plus C Operating System File update.
  • To make sure that your 8CU file is not corrupted or virus-infected, get the file again and scan it with antivirus software.