I wrote a small adapter VI to turn a typical "range" of cells, such as "A1:B7" into XLR8-compatible parameters. It is the attached "Range_to_XLR8.vi".
It is not bulletproof or optimized but it should work for up to 255 columns as defined in the "xls" format.
Feel free to criticize, optimize and share the VIs.
Peter
replaced VIs with newer versions: Peter Adelhardt
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