Perhaps it might suffice to have the various projects time-lined
calendar-wise neatly on the same sheet using CF, as illustrated in this
sample construct:

http://www.savefile.com/files/610176
Project TimeLining.xls

In cols A to C from row 2 down are listed the Projects, Startdates &
Enddates (dates are real dates)

In E1 across to W1 are listed consecutive real dates
eg; 25-2-07, 26-2-07, 27-2-07, etc

Select E2:W4 (E2 active), then apply CF using the formula:
=AND(E$1=$B2,E$1<=$C2)
Format to taste, ok out

Adapt and extend to suit ..
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
---
"Vibeke" wrote:
Greetings,
I have over 400 rows of data where Column 1 is text (project titles) and
Column 2 is a start date and Column 3 is an end date. In each of the date
columns, there are duplications.

I want to get these start and end dates into another spreadsheet which is
formatted like a calendar. However, I gather VLOOKUP on its own won't work
with the duplications, and when the dates in the first spreadsheet aren't in
chronological order.

There may be other ways of solving this, but my immediate thoughts were to
insert a new sheet search for all duplications in Column 2 and then
concatenate the corresponding text in column 1. I then need to find some way
of getting the concatenated text into the right day in the calendar.

Any suggestsions gratefully received.