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## File Types

Operating System file (*.XXu) - A file that contains device operating system software. Examples: Os160.73u, Os115.8xu, TI92base.9xu.

Handheld Software Application file (App) (*.XXk) - A file that contains an application created for a specific TI handheld device. Examples: TICabri.89k, TIFinance.9xk.

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