When you were running this im willing to bet your current working directory was not c:/scripts/modular_collector/collections. Did you notice that the filename said "22948850_Config_(10.5).xlsx". Spreadsheet::Read->new tried to read this file from the current directory because it had no path info.

$book = Spreadsheet::Read->new("c:/scripts/modular_collector/collectio
+ns/".$_, parser => "xlsx");
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