Try

Copy to MyXLFIle type XL5

If it doesn't work, you can try to use Excel automation to open and re-save the file as a type that is readable.

>I send XLS files created from VFP as (Copy to MyXLFIle type XLS) and they end up on an IPhone via email attachment
>Even though a more recent version of XL file from Word can be read , these older VFP generated XL files cannot.
>
>Anybody know any way of overcoming this (Short of ole automation whcih woud require huge redevelopment)