To download the data for the Summer 2003 SEJournal "Bits & Bytes" feature on using Excel to analyze air pollution data, click on this link. The file is a self-extracting archive that was created using WinZip 8.0 and the file size is about 897,000 bytes. It should take about three minutes to download with a 56Kbps dial-up modem. Mac users who cannot use the self-extracting file can download the uncompressed files individually. Use this link for the "location10.dbf" file (less than 1 minute at 56Kbps) and this link for the "dlygas10.dbf" file (about 20 minutes at 56Kbps).