"Index -1 out of bounds for length 4" error on running excel template BIP report

I've created an excel template with 77 columns and not heavy data. However on viewing the BIP report an error "Index -1 out of bounds for length 4" is thrown.

Attaching the sample template. Saved the template with .xls (MS Excel 97-2003 Worksheet)

Any ideas or suggestions are appreciated! Thanks.

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