diff --git a/Controller.c b/Controller.c
new file mode 100644
index 0000000..04efa63
--- /dev/null
+++ b/Controller.c
@@ -0,0 +1,33 @@
+#include "DataShell.h"
+
+int main (void)
+{
+    char* fileName=NULL;
+    int numLines = 0, numElements;
+    int option;
+
+    //Calling function to get name
+    menuOne(&fileName);
+
+    numLines = NumberLines(fileName); //Calling function to count how many lines
+    numElements = countElements(fileName); //Calling function to count elements in line
+
+    float **Matrix = malloc(sizeof(float) * numLines * numElements);
+
+    readDB(Matrix, fileName, numElements);
+
+    do{
+        option = menuTwo();
+        if(option == 1)
+        {
+            printMatrix(Matrix, &numLines, &numElements);
+            printf("\nPress [enter] to go back to the menu.\n");
+            __fpurge(stdin);
+            getchar();
+        }
+    }while(option != 2);
+
+
+    free(Matrix);
+    return 0;
+}
\ No newline at end of file
diff --git a/DataShell.h b/DataShell.h
new file mode 100644
index 0000000..210ac33
--- /dev/null
+++ b/DataShell.h
@@ -0,0 +1,150 @@
+//
+//  DataShell.h
+//  
+//
+//  Created by Samantha Morris and Mauro Bernal on 19/03/2021.
+//
+
+#ifndef DataShell_h
+#define DataShell_h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+/* Set EXTERN macro: */
+
+#ifndef DataShell_IMPORT
+    #define EXTERN
+#else
+    #define EXTERN extern
+#endif
+
+
+/* Function prototypes. */
+
+
+typedef uint8_t BYTE;
+
+EXTERN int NumberLines(char *fileName);
+/*
+ *
+ * The function NumberLines sees how many lines there are in a csv.
+ *
+ * @params
+ *      char *fileName
+ *          Name of file
+ *
+ *       
+ * @returns
+ *      int
+*/
+
+FILE* openMyfile (char *fileName);
+/*
+ *
+ * The function openMyfile opens a file.
+ *
+ * @params
+ *      char *fileName
+ *          Name of file
+ *
+ *       
+ * @returns
+ *      FILE*
+*/
+
+void closeMyfile(FILE *file);
+/*
+ *
+ * The function closeMyfile close a file.
+ *
+ * @params
+ *      char *fileName
+ *          Name of file
+ *
+ *       
+ * @returns
+ *      void
+*/
+
+void readDB (float **Matrix, char *fileName, int numElements);
+/*
+ *
+ * The function readDB reads a Data Base.
+ *
+ * @params
+ *      float **Matrix
+ *          Matrix where the DB is gonna be store
+ *      char *fileName
+ *          Name of file
+ *      int numElements
+ *          Number of elements in a line
+ *
+ *       
+ * @returns
+ *      void
+*/
+
+int countElements(char *fileName);
+/*
+ *
+ * The function countElements counts the number of elements in a line from a csv.
+ *
+ * @params
+ *      char *fileName
+ *          Name of file
+ *
+ *       
+ * @returns
+ *      int
+*/
+
+void printMatrix (float **Matrix, int *numLines, int *numElements);
+/*
+ *
+ * The function printMatrix prints the matrix that contains all data from a csv file.
+ *
+ * @params
+*      float **Matrix
+ *          Matrix where the DB is gonna be store
+ *      int numLines
+ *          Number of lines in a csv file.
+ *      int numElements
+ *          Number of elements in a line
+ *
+ *       
+ * @returns
+ *      void
+*/
+
+void menuOne(char **fileName);
+/*
+ *
+ * The function menuOne asks user for the name of the csv file that wants to open.
+ *
+ * @params
+ *      char *fileName
+ *          Name of file
+ *
+ *       
+ * @returns
+ *      void
+*/
+
+int menuTwo(void);
+/*
+ *
+ * The function menuTwo asks user if he wants to print data.
+ *
+ * @params
+ *      void
+ *
+ *       
+ * @returns
+ *      int
+*/
+
+
+#endif /* DataShell.h */
\ No newline at end of file
diff --git a/DataShell.pdf b/DataShell.pdf
new file mode 100644
index 0000000..a6114e6
Binary files /dev/null and b/DataShell.pdf differ
diff --git "a/Examen1/Primer examen parcial Grupo B Oto\303\261o 2020.pdf" "b/Examen1/Primer examen parcial Grupo B Oto\303\261o 2020.pdf"
deleted file mode 100644
index ae9e790..0000000
Binary files "a/Examen1/Primer examen parcial Grupo B Oto\303\261o 2020.pdf" and /dev/null differ
diff --git a/HELLO b/HELLO
new file mode 100644
index 0000000..01229c8
--- /dev/null
+++ b/HELLO
@@ -0,0 +1 @@
+Hello TDA 
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..75475eb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,36 @@
+#Makefile for Array (sirve ya para todos los programas)
+
+#Pones los targets que no van a generar files
+.PHONY = all CLEAN
+
+#Variables:
+CC = gcc
+world := hola #variable estatica 
+CFLAGS = -C0 -s -lm
+linkers = -lm -lpthread
+
+#Functions
+deps = $(wildcard *.c) #DEPENDECIES aqui van los .c esa fun. trae todos los .c
+depsh = $(wildcard *.h)
+BINS = $(deps: %.c = %.o) #del contenido de deps, copia todo lo que es .c y pegalo, pero concatenale .o
+
+
+all: ${BINS} eje
+#TARGET : {DEPENDENCIES ...}
+#<tab> RULE
+
+BINS: $(deps)  #trae todo lo que tenga .c $^ del lado derecho @$ del lado izquerdo
+	${CC} -c $^ ${CFLAGS}
+	@echo "Generating binary objects"
+
+
+eje: ${BINS} 
+	${CC} -o $@ $^ ${linkers}
+	@echo "Generating excecutable"
+
+PRINT:
+	@echo $(deps) $(BINS)
+
+CLEAN:
+	rm -rvf *.o TEST_ARRAY
+	@echo "Removing all binary objects and excecutables"
\ No newline at end of file
diff --git a/Model.c b/Model.c
new file mode 100644
index 0000000..88e83b2
--- /dev/null
+++ b/Model.c
@@ -0,0 +1,106 @@
+#include "DataShell.h"
+
+//Function that prints a Matrix
+void printMatrix (float **Matrix, int *numLines, int *numElements)
+{
+    for(int i = 0; i < *numLines; i++)
+    {
+        for(int j = 0; j < *numElements; j ++)
+        {
+            printf("%.6f ", *((*(Matrix+i))+j));
+        }
+        printf("\n");
+    }
+}
+
+//Function that reads DB and stores it in a Matrix
+void readDB (float **Matrix, char *fileName, int numElements)
+{
+    char buff[255];
+    char * value;
+    float *ptr = NULL;
+    int cont = 0, n =0;
+
+    FILE *file = openMyfile(fileName);
+
+    while(!feof(file))
+    {
+        fscanf(file, "%s", buff);
+
+        //numElements = countElements(buff);
+        float *ptr = malloc(sizeof(float) * numElements);
+        value = strtok(buff, ",");
+
+        while(value != NULL)
+        {
+            ptr[cont] = atof(value); //Stores value into ptr 
+            cont ++;
+            value = strtok(NULL, ",");
+        }
+        cont = 0;
+        Matrix[n] = ptr; //Matrix now points to ptr
+        n ++;
+
+    }
+    closeMyfile(file);
+
+    return;
+}
+
+//Function that tells how many elements does a csv line has
+int countElements(char *fileName)
+{
+    int numElements = 0;
+    char buff[255];
+
+    FILE *file = openMyfile(fileName);
+    fscanf(file, "%s", buff);
+    char* value = strtok(buff, ",");
+
+    while(value != NULL)
+    {
+        numElements ++;
+        value = strtok(NULL, ",");
+    }
+    //printf("num = %d ", numElements);
+    closeMyfile(file);
+    return numElements;
+}
+
+//Function that opens a file
+FILE* openMyfile (char *fileName)
+{
+    FILE *file = fopen(fileName, "r");
+
+    if(file == NULL)
+    {
+        printf("Couln´t open file\n");
+        exit(0);
+    }
+    return file;
+}
+
+//Function that closes a file
+void closeMyfile(FILE *file)
+{
+    fclose(file);
+}
+
+//Function that return number of lines
+int NumberLines(char *fileName)
+{
+    int numLines = 0;
+    char buff[255];
+
+    FILE *file = openMyfile(fileName);
+
+    while(!feof(file))
+    {
+        fscanf(file, "%s", buff);
+        numLines ++;
+    }
+
+    closeMyfile(file);
+
+    return numLines;
+}
diff --git a/README.md b/README.md
index b2236c4..4382a9b 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,4 @@
 DataShell Repository
+This program reads from a CSV and stores it data in a Double Pointer Arithmetic.
+To compile it you type "make" on the terminal.
+And to execute it you type "./eje".
diff --git a/View.c b/View.c
new file mode 100644
index 0000000..5a67dfe
--- /dev/null
+++ b/View.c
@@ -0,0 +1,22 @@
+#include "DataShell.h"
+
+void menuOne(char **fileName)
+{
+    system("clear");
+    printf("Hi! :)\n");
+    printf("Name of File: ");
+    scanf("%m[^\n]", fileName); //Reads until it finds a \n
+    printf("Reading from: %s...\n", *fileName);
+}
+
+int menuTwo(void)
+{
+    int option;
+    
+    system("clear");
+    printf("\nWhat do you wanna do?:\n[1] Print data. \n[2] Exit.\nAnswer: ");
+    scanf("%d", &option);
+    printf("\n");
+    system("clear");
+    return(option);
+}
\ No newline at end of file
diff --git a/Examen1/data.csv b/data.csv
similarity index 93%
rename from Examen1/data.csv
rename to data.csv
index a6eeb05..ba235b9 100644
--- a/Examen1/data.csv
+++ b/data.csv
@@ -1,4 +1,3 @@
-,0
 0,5.077850806
 1,5.11361086
 2,5.013413304
diff --git a/eje b/eje
new file mode 100644
index 0000000..d862daf
Binary files /dev/null and b/eje differ