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spreadsheet-manipulation

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Written in native C#, FileFormat.Cells for .NET is a free, open-source SDK designed to easily create, load, and modify Microsoft Excel spreadsheets with just a few lines of code.

  • Updated Jan 21, 2025
  • C#

NEXUS Office is a local-first productivity suite featuring Writer, Grid, Present, Paint, Data, and Whiteboard. Built for sovereign computing, it supports Microsoft Office formats, advanced analytics, document creation, visual design, and offline workflows without cloud dependencies.

  • Updated Oct 24, 2026
  • HTML

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