Desktop Data Analysis Utility

I need a Windows-only desktop application that streamlines my day-to-day data analysis work. At minimum the utility should let me import common formats such as CSV or Excel, inspect and filter the records, run simple statistical summaries (mean, median, standard deviation, counts), and export the results. Clean visualisations—basic line, bar and scatter plots—would be ideal so I can spot trends quickly without jumping to another tool.

Responsiveness matters more than flashy UI; native Windows frameworks (WPF, WinForms, Electron, Qt—whichever you are comfortable with) are all acceptable as long as the final build runs smoothly on Windows 10 and 11 without additional installs. I’ll also need the complete, well-commented source code and a brief user guide so future tweaks are straightforward.

Deliverables
• Installable Windows executable
• All project source files and build instructions
• PDF/Markdown user guide covering installation, main features and exporting data

I’m ready to answer follow-up questions about edge cases or sample datasets and will test against my own files before sign-off.