Opal-Convert CSV/Excel is a simple, accurate and fuss-free alternative to import a CSV into Excel or vice versa. Both Excel 2007+ (XLSX) and the older Excel 1997-2003 workbook (XLS) are supported. All types of CSV are also catered for, including support for different text encodings, multiple lines in a cell, and custom text delimiter/identifier (e.g.: comma or double quote etc.). Unlike the standard CSV import routine in Excel, Opal-Convert maintains line breaks, along with leading zeros, unicode support, and consistent text quotes for ALL CSV fields allowing for commas, new lines, and double quotes inside a field.
In general, more control over the input or output CSV file, such as the things mentioned above, but also simple things like field specifier, delimiter, and EOL support for the CSV (Windows and Unix), along with a GUI interface that updates in realtime. There's also the ability to rotate and filter rows/columns if necessary.
Anyone who wants to convert from CSV to Excel or vice versa without the problems than can occur when doing this in the usual way with Excel.