fread_folder()
for faster table reading with data.table::fread and suggests for data.table*added Identify.OS and choose_dir, as utility functions. meaning that even for Mac OSX and Linux users if the local directory in functions is not entered you can choose it interactively through a popup widget window.
*adde fread_zip which is the fread version of loadcsvfromZIP, also added a prefix option for fread_folder and fread_zip, accepts only strings of length 1.
fread_folder
to adapt to the changes in data.table::fread
.