function u8indexOfimport { u8indexOf } from "https://deno.land/x/sheetjs@v0.18.3/modules/src/util.ts"; u8indexOf(u8: Uint8Array,data: string | number | Uint8Array,byteOffset?: number,): numberParametersu8: Uint8Arraydata: string | number | Uint8ArrayoptionalbyteOffset: numberReturnsnumber