@ Juanporro, I just had an epiphany on what I have done to make it work in previous uploads. When I am exporting the .csv in excel, rather than just a standard comma separated values (.csv) type, I have to scroll down the options and select “Windows Comma Separated (.csv). Not sure if that will help, I am on a mac running OS 10.7.5 and Microsoft Excel 2011 for mac.
I just did that and was successful at uploading my list.
@manishkrag – It might be helpful to include the specification of the Windows Comma Separate (.csv) format. As I mentioned, I am not sure if it is because I am on a mac but I suspect that might be the case. Thanks for the great tool by the way ??
I hope this helps!