Trapped in Static Excel Tables
Excel is great for data entry, but presenting monthly reports to executives often requires building manual pivot tables, copying charts into PowerPoint, and re-linking broken formula ranges. Enterprise alternatives like Power BI require steep training and expensive recurring licenses.
Instant, Factual Visualization
OpenMIS parses your Excel file locally, identifies dates and numerical values, computes verifiable totals, and constructs an interactive executive dashboard in seconds. You can customize widgets, apply filters, and print board-ready reports.
All charts feature accessible data tables and anti-formula injection export protection.
Transparent Mathematical Calculations
OpenMIS uses pure mathematical functions for all analytics. Totals use exact summation, period growth uses verified formulas with zero-denominator safeguards (safeDivide), and distributions calculate IQR boundaries. Every widget includes an evidentiary calculation modal showing exactly how values were derived.
Frequently Asked Questions
Does OpenMIS support multi-sheet Excel files?
Yes. When you upload an .xlsx workbook with multiple worksheets, OpenMIS provides an interactive sheet selector, allowing you to choose which tab to profile and visualize.
Are my Excel formulas evaluated?
OpenMIS reads the evaluated cached values stored inside the XLSX file by SheetJS CE. Raw formula definitions that rely on external linked workbooks are not dynamically recomputed.
What is the file size limit for Excel uploads?
Files up to 50MB are supported. Because all parsing happens in your browser RAM, workbooks up to 100,000 rows yield the smoothest interactive responsiveness.
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