The string can be tentatively segmented into recognizable morphemes: “old,” “from,” “hulu,” “cloud,” “sken” (possibly a misspelling of “scan” or a truncated name), “187” (a number with legal or pop cultural resonance, as in penal code sections), “ken” (a name, or the verb “to know”), “txt” (a plaintext file extension), and “portable” (suggesting mobility or a cross-platform application). These pieces hover between sense and nonsense.

To help you find exactly what you need, could you clarify a few details: What kind of "paper" is this?