1. Click 'Start,' then 'All Programs,' then 'Microsoft Office,' then 'Microsoft Excel 2003.'
2. Click 'File,' then 'Open.' Click the file type drop-down menu and select 'All Files and Folders.'
3. Locate your Lotus 1-2-3 file, then select it and click 'Open.'
4. Click 'File,' then 'Save As.'
5. Click the file type drop-down menu and select 'Microsoft Excel Workbook.' Choose a name for your converted file and click 'Save.' You have now converted Lotus to Excel 2003.