diff --git a/package-lock.json b/package-lock.json
index c007368bdf7e4b6b8f117743c73420c19a09c580..a871c7fd522d67f0d99515b449858c36af0b4636 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3805,6 +3805,11 @@
       "integrity": "sha512-UqBRqi4ju7T+TqGNdqAO0PaSVGsDGJUBQvk9eUWNGRY1CFGDzYhLWoM7JQEemnlvVcv/YEmc2wNW8BC24EnUsw==",
       "dev": true
     },
+    "helmet": {
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/helmet/-/helmet-4.6.0.tgz",
+      "integrity": "sha512-HVqALKZlR95ROkrnesdhbbZJFi/rIVSoNq6f3jA/9u6MIbTsPh3xZwihjeI5+DO/2sOV6HMHooXcEOuwskHpTg=="
+    },
     "hosted-git-info": {
       "version": "2.8.9",
       "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
diff --git a/package.json b/package.json
index 12c97c56e5ee0fa24dc0e943f12e56b418236c62..bd0ac15ccc778c20fef5e6b88567514ee7778f2d 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "dotenv": "^10.0.0",
     "express": "^4.17.1",
     "gulp-eslint": "^6.0.0",
+    "helmet": "^4.6.0",
     "openapi-types": "^9.3.0",
     "swagger-jsdoc": "^6.1.0",
     "swagger-ui-express": "^4.1.6",
diff --git a/src/Config/Constants.ts b/src/Config/Constants.ts
new file mode 100644
index 0000000000000000000000000000000000000000..6f2b9755a81eaa92b7ead75db327b4710888f7f0
--- /dev/null
+++ b/src/Config/Constants.ts
@@ -0,0 +1,6 @@
+export const SheetNames = {
+  HOMBRES: 'Hombres',
+  MUJERES: 'Mujeres',
+  HOMBRES_MENORES: 'Hombres<1',
+  MUJERES_MENORES: 'Mujeres<1',
+};
diff --git a/src/Services/SheetService.ts b/src/Services/SheetService.ts
index 79f94f559f76761daa7232daf033ba181fed1962..947b1b0998d3b74ea107177cfbbd297d41962c12 100644
--- a/src/Services/SheetService.ts
+++ b/src/Services/SheetService.ts
@@ -1,4 +1,5 @@
 import * as XLSX from 'xlsx';
+import { SheetNames } from '../Config/Constants';
 import {
   SheetParserResponse, Menores, Mayores, MenoresSheet, MayoresSheet,
 } from '../Models/SheetParserResponse';
@@ -19,7 +20,7 @@ import {
 //   return work;
 // };
 
-const parseMen = (worksheet: XLSX.WorkSheet): Mayores[] => {
+const parseAdults = (worksheet: XLSX.WorkSheet): Mayores[] => {
   const res: Mayores[] = [];
   const ref = worksheet['!ref'];
   if (ref === undefined) throw new Error('An error ocurred');
@@ -42,43 +43,7 @@ const parseMen = (worksheet: XLSX.WorkSheet): Mayores[] => {
   return res;
 };
 
-const parseWomen = (worksheet: XLSX.WorkSheet): Mayores[] => {
-  const res: Mayores[] = [];
-  const ref = worksheet['!ref'];
-  if (ref === undefined) throw new Error('An error ocurred');
-  const range = XLSX.utils.decode_range(ref);
-  range.s.c = 0;
-  range.e.c = 2;
-  const newRange = XLSX.utils.encode_range(range);
-
-  const aux = XLSX.utils.sheet_to_json(worksheet, { range: newRange }) as unknown as MayoresSheet[];
-  aux.forEach((element: MayoresSheet) => {
-    res.push(
-      {
-        edad: element['Edad (años)'],
-        peso: element['Peso (Kg)'],
-        talla: element['Talla (cm)'],
-      },
-    );
-  });
-  return res;
-};
-
-const parseMenLessThanAYear = (worksheet: XLSX.WorkSheet): Menores[] => {
-  const res: Menores[] = [];
-  const aux = XLSX.utils.sheet_to_json(worksheet) as unknown as MenoresSheet[];
-  aux.forEach((element: MenoresSheet) => {
-    res.push(
-      {
-        edad: element['Edad (meses)'],
-        peso: element['Peso (Kg)'],
-      },
-    );
-  });
-  return res;
-};
-
-const parseWomenLessThanAYear = (worksheet: XLSX.WorkSheet): Menores[] => {
+const parseBabies = (worksheet: XLSX.WorkSheet): Menores[] => {
   const res: Menores[] = [];
   const aux = XLSX.utils.sheet_to_json(worksheet) as unknown as MenoresSheet[];
   aux.forEach((element: MenoresSheet) => {
@@ -110,17 +75,17 @@ const parseSheetService = (data: Buffer): SheetParserResponse => {
   sheetNames.forEach((name) => {
     const worksheet: XLSX.WorkSheet = workbook.Sheets[name];
     switch (name) {
-      case 'Hombres<1':
-        hombresMenores = parseMenLessThanAYear(worksheet);
+      case SheetNames.HOMBRES_MENORES:
+        hombresMenores = parseBabies(worksheet);
         break;
-      case 'Hombres':
-        hombres = parseMen(worksheet);
+      case SheetNames.HOMBRES:
+        hombres = parseAdults(worksheet);
         break;
-      case 'Mujeres<1':
-        mujeresMenores = parseWomenLessThanAYear(worksheet);
+      case SheetNames.MUJERES_MENORES:
+        mujeresMenores = parseBabies(worksheet);
         break;
-      case 'Mujeres':
-        mujeres = parseWomen(worksheet);
+      case SheetNames.MUJERES:
+        mujeres = parseAdults(worksheet);
         break;
 
       default:
diff --git a/src/Services/test.xlsx b/src/Services/test.xlsx
index 9fef8e5821051fe4270710bcec7daf0e25d1894a..3edb2bfeb00af26dd42279a2a4ebbdd2beb50724 100644
Binary files a/src/Services/test.xlsx and b/src/Services/test.xlsx differ
diff --git a/src/index.ts b/src/index.ts
index 9fdd678e0bcf2d912ae8503fedaa1f7dedd5552b..52cbdc32127f805de68a2ef4a320b6f81501284e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,11 +4,12 @@ import 'dotenv/config';
 import cors from 'cors';
 import swaggerJsDoc, { Options } from 'swagger-jsdoc';
 import swaggerUi from 'swagger-ui-express';
+import helmet from 'helmet';
 import Routes from './routes';
 
 const app: Application = express();
 const PORT = process.env.PORT || 8000;
-
+app.use(helmet.hidePoweredBy());
 // swagger init
 const swaggerOptions: Options = {
   swaggerDefinition: {