Thanks for the relatively new tip - works great to create SAS datasets -- except when it doesn't !!

Does anyone know what this SAS error means?

"No cell rectangle in range Requested Input File Is Invalid"

I don't really know why but I had 36 macro passes for 36 Excel tabs and four of them failed with these same error messages.
I checked - all source tabs were spelled correctly.
All tabs have data in them and all of the source headers are "Variable name" (which get converted to "variable_name" in SAS).