Accelerometer, Android, Simulate replace current Data with Old one

1. I need a way to replace real accelerometer data from phone sensor with other one old data (x,y,z) that currently i have at Excel table and array at Android. Maybe i need to write my own class Sensor or?

   Because i want to test my app with them

2. Does i calculate linear acceleration right.

   private float timeConstant = 0.18f;
   private float alpha = 0.7f;
   private float dt = 0;
   // Timestamps for the low-pass filter
   private float timestamp = System.nanoTime();
   private float timestampOld = System.nanoTime();
   
   

   (...)

   @Override public void onSensorChanged(SensorEvent sensorEvent) { Sensor accSensor = sensorEvent.sensor;

   if (accSensor.getType() == Sensor.TYPE_ACCELEROMETER) {
       System.arraycopy(sensorEvent.values, 0, this.accelerationOnAxis, 0, sensorEvent.values.length);
   
       x_accelerometer = sensorEvent.values[0];
       y_accelerometer = sensorEvent.values[1];
       z_accelerometer = sensorEvent.values[2];
       //timestampOld = timestamp;
       timestamp = System.nanoTime();
   
       float deltaTime = timestamp - timestampOld;
   
       dt = 1 / (count / ((deltaTime) / 1000000000.0f));
   
       count++;
   
       alpha = timeConstant / (timeConstant + dt);
       // long tDelta = currentUpdate.getTime() - lastUpdate.getTime();
       // long t = 1 / (2 * Math.PI * fc);
       //alpha = t / (t + tDelta);
   
       x_gravity = alpha * x_gravity + (1 - alpha) * x_accelerometer;
       y_gravity = alpha * y_gravity + (1 - alpha) * y_accelerometer;
       z_gravity = alpha * z_gravity + (1 - alpha) * z_accelerometer;
   
       x_linear_acceleration = x_accelerometer - x_gravity;
       y_linear_acceleration = y_accelerometer - y_gravity;
       z_linear_acceleration = z_accelerometer - z_gravity;
   
       gravityOnAxis = new float[]{x_gravity, y_gravity, z_gravity};
       linearAcceleration = new float[]{x_linear_acceleration, y_linear_acceleration, z_linear_acceleration};
   
       int length = linearAcceleration.length - 1;
       Log.d("LinearAccelOnAxes", "on x-" + x_linear_acceleration +
               "on y-" + y_linear_acceleration +
               "on z-" + z_linear_acceleration);
   
       allAccelData.add(linearAcceleration);
   
   

   /// } } currentAcceleration = (float) (Math.pow(x_linear_acceleration, 2) + Math.pow(y_linear_acceleration, 2)+ Math.pow(z_linear_acceleration, 2));

}

Thank You