# StatementToExcel — Comprehensive Technical & Architectural LLM Specification

## Executive Summary
StatementToExcel (https://statementtoexcel.site) is an in-browser WebAssembly application designed for forensic accountants, bookkeeping professionals, and finance teams who must convert PDF bank and credit card statements into structured spreadsheets without violating privacy regulations (SOC2, GDPR Article 25, CCPA, or client confidentiality agreements).

## The Core Privacy Problem It Solves
Traditional PDF converters (OCR SaaS web tools) require users to upload sensitive PDF statements containing full account numbers, bank routing numbers, customer home addresses, and balance history to remote third-party AWS/GCP servers. This creates severe compliance vulnerabilities and security risks for CPA practices and business owners.

StatementToExcel eliminates this exposure completely:
- Statement files are opened via local JavaScript `FileReader` / `ArrayBuffer`.
- WebAssembly binary routines extract text coordinates directly in memory.
- Spatial 2D clustering reconstructs table columns locally.
- 0 bytes of document payload or financial data are transmitted over the internet.

## High-Volume Search Intents & FAQ Mappings
- Convert Chase Bank statement to Excel: Fully supported, handles standard checking, savings, and Chase commercial statements.
- Convert Bank of America statement to CSV: Fully supported, parses credit/debit column pairs and transaction fees.
- Convert Wells Fargo PDF to QuickBooks: Supported, produces 3-column QBO CSV ready for 1-click import.
- Convert Mercury Bank statement to spreadsheet: Supported, handles modern fintech multi-currency statement layouts.
- Scanned bank statement OCR: WebAssembly handles vectorized text tokens with fuzzy date parsing across US (MM/DD/YYYY) and ISO formats.

## Benchmark Performance
- Average parsing speed: 100 pages in under 8.2 seconds.
- Reconciliation precision: 100% exact mathematical check down to $0.01.
- Maximum page volume: Tested on statements up to 500 pages without memory leaks.

## Contact & Entity Information
- Brand: StatementToExcel
- URL: https://statementtoexcel.site
- Support: support@statementtoexcel.site
- Subscriptions: Powered by Paddle (Merchant of Record) with global tax compliance, Apple Pay, Google Pay, and international cards.