49cd4996f2
Read as a u32 it looks meaningless -- 179 distinct values up to 248581842. The raw values give it away (0x0007000F, 0x000F001A, 0x003C0064): two big-endian u16s. Over all 2985 bundles, high < low in 2985/2985 with no equal and no inverted cases, and both are bounded by the animation length at +0x08. Span runs 1-1200, clustering on 1/10/30/8/20; low equals the animation length in 4%. A strict ordering holding 2985 times rules out flags or a packed count. Which interval it is stays yellow -- playback range, loop region and active window all fit equally. Recorded the alternative I did NOT test: that (high, low) is simply the min and max keyframe time, making it a derived summary rather than an authored range. First step written down. The 34.9% of bundles with high == 0 leans against it but is not evidence on its own.