Open Source Spreadsheet Comparison

All three programs have automatic cell filling, which detects a pattern in cell data such as the days of the week or an incremental pattern in numbers, then uses the pattern to fill other cells when you drag on the lower right corner of the first cell. In Calc and KSpread, you can define fills and add them to the patterns that the program can detect -- a feature especially useful when creating templates. In addition, KSpread has a Series tool in the Insert menu which can be used to define numerical patterns.