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Comparison of Spreadsheet Software
We compared popular spreadsheet engines—feature sets, function support, accuracy, and speed—and how GRID compares to Excel, Sheets, and the rest of the field.
Judging by the engine's tight coupling to its UI, its primary focus seems to be to allow in-browser spreadsheet viewing and editing. Its compatibility with both Excel and Sheets workbooks is low as there are some fundamentals missing like correct/dynamic dependency calculations and anything beyond the most basic number formatting. POI is a limited headless Java engine that aims to be a programmatic interface on top of Excel workbooks.
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