I have data that looks like:
date value1 value2
1/1/01 200 222
1/2/01 340 444
1/3/01 450 532

and i want to look up value1 and value2 based on dates. when i use vlookup
it always produces #NA. i have tried different formatting and it does work
when i convert the date to datevalue and base the lookup on the corresponding
datevalue. why is this? is date not an allowed lookup value for the vlookup
function?

i have lots of data sets with date in different formats that are
periodically added to, and need to find some system for looking up values
without going thru a cumbersome process of finding the datevalues for the
dates i am looking for then inserting that value in the vlookup formula
rather than the actual date.

thank you!