pub const DEFAULT_MAX_INPUT_BYTES: u64 = _; // 524_288_000u64Expand description
Default bound on input size, checked before any read begins (RFC-035
§5.4): 500 MiB. Chosen to be generous enough that no ordinary .xlsx
workbook — this crate does not compare macros, embedded media, or other
content that would make a legitimate file huge — should ever reach it,
while still being finite.