title: How to save a data frame in a txt or excel file separated by columns
body: <p>I have a question about saving data frames in txt or excel format. I have a data frame in R but when I save it:</p>
  
  <ol>
  <li>First using <code>write.table()</code> function when I open the saved data frame for example in Excel, all columns are grouped in one column and you have to separe the columns in Excel with a risk to lose data. The same happens with <code>write.csv()</code> function.</li>
  </ol>
  
  <p>Is it posibble to save in R a data frame with all columns separated. Thanks.</p>