diff --git a/app.R b/app.R
index 9f6cbcd..2a9b433 100644
--- a/app.R
+++ b/app.R
@@ -11,7 +11,7 @@ ui <- fluidPage(
   navbarPage("Apps",
      tabPanel("Translation",
         sidebarPanel(
-          fileInput("file1", "Sube fichero mfasta", multiple = FALSE),
+          fileInput("file1", "Sube fichero (fasta, csv o xlsx)", multiple = FALSE),
           selectInput("spec", label = h3("Specie"), 
                       choices = list("Human" = 1, "E. Coli" = 2), 
                       selected = 1),
@@ -43,7 +43,17 @@ server <- function(input, output) {
     
     observe({
       if (!is.null(input$file1)){ # This ensures that the reading is only tried when File selected
-        obj$fasta<-read.fasta(input$file1$datapath)
+        if (grepl(".xlsx", input$file1$datapath)){
+          file<-openxlsx::read.xlsx(input$file1$datapath)
+          obj$fasta<-dataframe2fas(file)
+        }else{
+          if (grepl(".csv", input$file1$datapath)){
+            file<-read.csv(input$file1$datapath)
+            obj$fasta<-dataframe2fas(file)
+          }else{
+            obj$fasta<-read.fasta(input$file1$datapath)   
+          }
+        }
       }
     })