Mathproven

Bookkeepers and accountants

Statement tools for bookkeepers: turn bank and card exports into one clean table, an OFX file, or import-ready CSV files, and merge months into one ledger. Every result proves that opening balance plus transactions equals closing balance. These tools read rows (CSV, Excel, or pasted); they do not read PDF files or scans.

Openingbalance+Transactions−Transactions=ClosingbalanceOpening plus transactions is closing
Every result proves this one line of arithmetic.

Tools

Multi-month statement mergeMerge months of statement exports into one ledger and prove each closing balance is the next opening balance.Statement rows to Excel or CSVTurn a bank or card export into one clean table and prove it ties to the statement's balances.Statement to OFX and split CSVWrite an OFX file and row-limited CSV files from statement rows, each proven equal to the statement.