intial docs

README.md

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+# json2excel
+
+This is a basic utility to take json and convert it into an OpenXml format xlsx file, compatible with Excel.
+
+It expects that the json input is formatted as an object containing an array of objects. Column names are generated based on the keys in the first nested object.
+
+## Command line options
+| Parameter | Default Value | Description
+|---------------|---------------|
+| worksheetName | Sheet1 | Set the name of the worksheet