Convert .csv or .txt to Javascript .js array

[hotrodmerc]

Hello all,
I am not a coder but I have to make some revisions to a .js array that is used for a special search on my website. I have 3 columns of data in 25,000 rows yielding approximately 45000 unique combinations.
The syntax of the .js array is;
level1=new Array;level0=new Array("x1","x2","x3",.......);level1["x1"]=new Array("x1y1","x1y2","x1y3",......);level2["x1y1"]=new Array("z1","z2","z3",.....).....

I have tried to manipulate the data in excel and notepad++ but cant find a simple solution. Is there a conversion tool available to get this done or do I need a custom conversion tool?

Thanks in advance for any help sent my way
Cheers!

[rnd me]

if you have an array of arrays:

Array.prototype.toCSV=function(){ return this.join("\n"); };

to parse a CSV:

function parseCSV(str){
var  stack=[], ob=[], float="", inQuotes=false;
for( var i=0; i<str.length;i++){
  var it=str[i];
    if(it==='"'){  inQuotes=!inQuotes; if(str[i-1]==='"'){float+='"';} continue; }
    if(it===","){ if(!inQuotes){ob.push(float); float="";}else{float+=",";} continue;}
    if(it==="\n"){ ob.push(float); stack.push(ob); float=""; ob=[]; continue;}
    float+=it;
  }
  ob.push(float); stack.push(ob);
return stack;
}