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Excel tools that are reliable, fast, and built for your reality

Since 2017, GNIEP has been designing simple, robust and durable management tools based on Excel and tailored to real operational constraints. We turn your needs into stable, documented and maintainable solutions — without unnecessary complexity.

🔍 What we help you solve

  • Activity, budget or resource tracking that has become too complex
  • Repetitive tasks that consume hours every week
  • Excel files that are slow, unstable or impossible to modify
  • Legacy tools no one understands or can maintain

We clean up, stabilise and rebuild tools that support your daily operations.

🛠️ What we deliver

  • Custom management tools (planning, reporting, allocation, tracking)
  • Process automation and advanced Excel features
  • Technical review, documentation and refactoring
  • Debugging, performance optimisation and stabilisation

🔗 Excel connected to your systems

We integrate Excel with your existing environment:

  • SQL Server or other databases: queries, synchronisation, automated loading
  • Internal data sources and external services: structured and controlled data flows
  • Exports, flat files, internal systems: smooth and reliable integration

Excel remains your natural interface. We make it faster, more stable and better integrated.

⚙️ Excel as the interface. EXE/DLL as the engine.

When needed, we reinforce Excel with dedicated components:

  • Standalone EXEs for heavy processing or system integration
  • Specialised DLLs for fast calculations or low‑level functions
  • Clear architecture: Excel as the interface, external modules as the logic engine

The result: a simple Excel tool backed by solid engineering.

📊 Built‑in advanced analysis

We add analysis and decision‑support mechanisms directly into your tools:

  • resource allocation
  • scenarios and simulations
  • cost models and trade‑offs

Everything runs automatically inside Excel — you get powerful models without visible complexity.

🎯 A rigorous, results‑driven approach

Our tools are:

  • fast
  • stable
  • documented
  • adapted to your real‑world constraints

…and easy for your teams to maintain.

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