How to Add Write Append data line in CSV files?

Questions
1

Hi, I need to add extra lines in CSV files, but without “BRACES {}” in the second line. I’d like to maintain the same format as first line given by “Export[]” command.
Thanks in advance,
Gustavo

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writetocsv.nb (4.41 KB)

2

Gustavo,

This should do the trick. Create a string in CSV format and write the string to the file:

Export["output.csv", data1];
str = OpenAppend["output.csv"];
WriteString[str, ExportString[data2, "CSV"]];
Close[str];

Regards,

Neil