Show HN: I made Cellect – AI agent for spreadsheets (www.cellect.ai)

Cellect is an AI spreadsheet agent showcased on Show HN that lets users query, clean, and analyze tabular data directly inside spreadsheets. The project includes example workbooks: an inventory/production/shipping dataset for seven products across four periods (with 13 missing values), a CPI forecasting workbook with historical data and 2024–2025 predictions spanning 28 records and 14 variables, and a medical experimental-comparison table. The agent performs tasks such as identifying and imputing missing values, generating forecasts, and comparing experimental conditions — turning routine spreadsheet workflows into conversational, model-driven analyses. For the AI/ML community this is significant because it demonstrates a practical, end-user application of data-centric AI: accelerating exploratory analysis, automated preprocessing, and domain-specific forecasting without heavy engineering. Cellect emphasizes multilingual spreadsheet support and industry-standard encryption for data security, highlighting real-world deployment concerns (privacy, access control). Key implications include faster prototyping of hypotheses, lower barriers for non-technical analysts, and new benchmarking opportunities for agent performance on tabular tasks — while raising questions about model transparency, reproducibility of automated imputations/forecasts, and integration with existing BI pipelines.