What do you mean, 'best format'?
Excel sheet may contain up to 65536 rows, far below VFP limit. So, if you import from Excel to VFP and use native VFP commands like import, copy, append, then you should not experience any problem. Excel Automation will slow down the performance.

>I tried your way and it works. Do you know what will be the best format to use >if the source file contains more 10,000 rows ?
>sherry