Renaming files on the SD card

Using Arduino Storage
25

fat16lib:
To open or create a file for append in SdFat

  if (datafile.open("logfile.txt", O_WRITE | O_CREAT | O_APPEND)) {

dataFile.println("Hello");
    dataFile.close();
  }



If you declared

SdFat sd;



use

if (sd.exists("now.csv"))

Dear Fat16lib sir,
that's a great work you have done. Now, I have gone to the doc section in github and it's a bunch of html codes. I cant read it... do you have any other location for docs?? coz I'm in a planning to change my codes to move to sdfat.

Mishu~