Hi David,
>Used a hex file viewer between each run and it does look like bintoc() is stored in the idx. Which is somewhat suprising. There's no word/byte swapping like the integers have in the .dbf itself. So maybe FoxPro is playing some other tricks that make this the fastest way to deal with the index file.
This is indeed surprising! Thanks for checking it out!
Christof
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Christof