This is an open source project. It allows you to export either a single sheet or entire spreadsheets from Google Sheets as XML or JSON.
It works like a charm every single time, and is a non-trivial part of my workflow in several projects!
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I use this tool every other day. It saves a few minutes each time, but it does add up. Really helps in transferring "data" between non-technical users and developers in my team. We even used it as _digital duck tape_ for a week when an OMS script broke and we had to drop some XML orders by hand.
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