title: Merge files with different numbers of rows with special characters
body: <p>How to merge files with different row numbers in each file?
  The columns are always the same (same numbers, same names), but files have different number of rows.</p>
  <p>I must merge them with UTF-8 encoding. Couldn't pull it off in map_df() function. Rbind is not working, must be same amount of rows</p>
  <p>Any suggestions?</p>