Problem: I want to calculate currency difference for yrs 1997-2007. Currently this is done via:
Sheet9! below a b c 1 Date AUS USA 2 199712 0.782 1 3 199801 0.761 1 . . . n 200712 =this matrix is named 'fx' Sheet3! below M1=199801 M2=2 (for the column to look up) M3=vlookup(M1,fx,M2,false) M4=vlookup(M1-1,fx,M2,false) M3 works fine, M4 crashes in 199801. Any suggestions? I have .csv files saved YYYYMM (year month).csv so changing the dates would be tedious. --~--~---------~--~----~------------~-------~--~----~ ---------------------------------------------------------------------------------- Some important links for excel users: 1. Excel and VBA Tutorials(Video and Text), Free add-ins downloads at http://www.excelitems.com 2. Excel tutorials at http://www.excel-macros.blogspot.com 3. Learn VBA Macros at http://www.vbamacros.blogspot.com 4. Excel Tips and Tricks at http://exceldailytip.blogspot.com To post to this group, send email to excel-macros@googlegroups.com If you find any spam message in the group, please send an email to: Ayush Jain @ jainayus...@gmail.com or Ashish Jain @ 26may.1...@gmail.com <><><><><><><><><><><><><><><><><><><><><><> HELP US GROW !! We reach over 5,200 subscribers worldwide and receive many nice notes about the learning and support from the group. Our goal is to have 10,000 subscribers by the end of 2009. Let friends and co-workers know they can subscribe to group at http://groups.google.com/group/excel-macros/subscribe -~----------~----~----~----~------~----~------~--~---