Help with a formula

Hey guys, i need some help with converting a formula from a MQ4 indicator into excel. in other words, i need to use the formula that's in the indicator for backtesting in excel. i just cant figure this one out. i dont know if it's becaus ei dont understand the language enough or what, i just cant get it. so take a look and please see if you can help. i attached the indicator to the post, but i'll also put the code here:

extern double OverBoost = 0.0;
extern double Kv=0.25;
extern double Kz=0.15;


double Buffer.Up[];
double Buffer.Dw[];
double smin[];
double smax[];
double trend[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
// Var init
LastDir = 0; // Last direction trend 1
BarCount = 0;
string short_name;

//---- indicator line

SetIndexStyle(0,DRAW_ARROW, EMPTY, 2);
SetIndexArrow(0,159);
SetIndexStyle(1,DRAW_ARROW, EMPTY, 2);
SetIndexArrow(1,159);


IndicatorBuffers(5);
SetIndexBuffer(0,Buffer.Up);
SetIndexBuffer(1,Buffer.Dw);
SetIndexBuffer(2,smin);
SetIndexBuffer(3,smax);
SetIndexBuffer(4,trend);

//---- name for DataWindow and indicator subwindow label
short_name="Max_Stops("+Delta+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"Support");
SetIndexLabel(1,"Resistance");
//----
SetIndexDrawBegin(0,Delta);
SetIndexDrawBegin(1,Delta);
//----
return(0);
}

//+------------------------------------------------------------------+
//| _Max_Stops_v1.1 |
//+------------------------------------------------------------------+
int start()
{

if ( LastBarTime != Time[0] )
{
LastBarTime = Time[0];
BarCount += 1;
} // else return(0);


int shift,limit, counted_bars=IndicatorCounted();

if ( counted_bars > 0 ) limit=Bars-counted_bars;
if ( counted_bars < 0 ) return(0);
if ( counted_bars ==0 ) limit=Bars-Delta-1;

for(shift=limit;shift>=0;shift--)
{
// initialize vectors
smin[shift] = -999999; smax[shift] = 999999;

// for each element shift I scan for Delta prev number of elements and
for (int i = Delta-1;i>=0;i--)
{
double body = MathAbs(High[shift]-Low[shift])*Kz;
smin[shift] = MathMax( smin[shift], Low[shift+i]-Kv/100+body);
smax[shift] = MathMin( smax[shift], High[shift+i]+Kv/100-body);
}

// I assume trend equal prev trend direction but ...
trend[shift]=trend[shift+1];
if ( Close[shift] > smax[shift+1] ) trend[shift] = 1;
if ( Close[shift] < smin[shift+1] ) trend[shift] = -1;



if ( trend[shift] >0 )
{
if( smin[shift]<smin[shift+1] ) smin[shift]=smin[shift+1];
smin[shift] = smin[shift] + OverBoost / 1000;
Buffer.Up[shift]=smin[shift];
Buffer.Dw[shift] = EMPTY_VALUE;
if (LastDir != 1)
{
LastDir = 1;
BarCount = 1;
}
}

if ( trend[shift] <0 )
{
if( smax[shift]>smax[shift+1] ) smax[shift]=smax[shift+1];
smax[shift] = smax[shift] - OverBoost / 1000;
Buffer.Up[shift]=EMPTY_VALUE;
Buffer.Dw[shift] = smax[shift];
if (LastDir != 2)
{
LastDir = 2;
BarCount = 1;
}
}

}
return(0);
}