libcsv_parser++ is a C++ library for parsing text files to extract records and fields. The records can be delimited with any set of characters. It makes the following assumptions: the record terminator is only one character in length; the field terminator is only one character in length; and the fields are enclosed by single characters, if any. The parser can handle documents where fields are always enclosed, not enclosed at all, or optionally enclosed. When fields are strictly all enclosed, there is an assumption that any enclosure characters within the field are escaped by placing a backslash in front of the enclosure character. The software could be ported to Windows with very little effort.
csvgroupby is a small utility program that allows you to obtain aggregated statistical information from comma-separated files containing tabular data. It is similar to the SQL GROUP BY clause. It currently supports the COUNT, MAX, MIN, SUM, and AVG operators. It performs as many processing jobs as possible in a single run through the data file, which means that large data sets can be efficiently processed.