I have a large number of worksheets containing date series data (first column has date, second has value corresponding to that date). I'm looking for a macro which will combine these worksheets and align the data so that the data for any given date end up in one row. I've found a macro which combines multiple sheets into one, but don't know how to align the data by date. Any suggestions are welcome. Also...I'm trying to do this with Excel 10 (64 bit) because the resulting combined worksheet will be very large. Thanks in advance for any guidance.