Convert an Excel workbook into a validated ACH/NACHA file. Free, no signup, and your file is processed locally in your browser.
Primary topic: Excel to ACH converter
The Excel to ACH converter converts spreadsheet payment rows into a validated NACHA file. Use this Excel to ACH converter as a practical first step, then review its results carefully. remove formulas or merged cells that obscure payment values and always validate the result before bank upload.
A reliable Excel to ACH converter workflow starts by confirming the business purpose before changing or exporting any data. This page is designed for converts spreadsheet payment rows into a validated NACHA file. It performs the supported work locally, so the source does not need to be sent to a conversion service. Use the Excel to ACH converter with an approved source and a clearly defined expected result.
Start with an XLSX workbook with one payment table and columns for receiver, routing, account, amount and transaction details. Work from a copy, preserve leading zeros and remove unrelated report headings or totals that could be mistaken for transaction data.
Use the on-page controls, then compare the displayed batch count, entry count, total debits and total credits with the source expectation. Investigate warnings instead of assuming that a downloadable result is correct.
The expected result is a NACHA-formatted ACH file with calculated entry counts, hashes, debit totals, credit totals and padding. Before transmission or downstream import, review the selected worksheet, header row, column mapping, dates, SEC code, company details and payment totals, save the source separately and follow your organization’s approval process.
Confirm that the selected input really contains an XLSX workbook with one payment table and columns for receiver, routing, account, amount and transaction details. A renamed extension does not convert a spreadsheet, PDF or binary export into a valid ACH-related source.
Compare entries one batch at a time. Missing rows, duplicated rows, amount scaling, debit-versus-credit selection and malformed addenda can all change counts or monetary totals.
Format validation does not verify enrollment or bank policy. remove formulas or merged cells that obscure payment values and always validate the result before bank upload. Ask the ODFI for the rejection code and compare it with the company profile, identifiers and processing date.
It converts spreadsheet payment rows into a validated NACHA file. The Excel to ACH converter processes the data locally in your browser and does not require an account.
It needs an XLSX workbook with one payment table and columns for receiver, routing, account, amount and transaction details. Files remain on your device during processing.
You will get a NACHA-formatted ACH file with calculated entry counts, hashes, debit totals, credit totals and padding. Review the result before using it in an operational workflow.
Check the selected worksheet, header row, column mapping, dates, SEC code, company details and payment totals. Also remember that remove formulas or merged cells that obscure payment values and always validate the result before bank upload.
Start with an XLSX workbook with one payment table and columns for receiver, routing, account, amount and transaction details. Preserve leading zeros in routing and account numbers, confirm whether amounts are dollars or cents, and review every mapped column before conversion.
Usually, yes. The source does not need one exact column order, but each required ACH field must map to a usable value. Remove report titles, subtotal rows and blank header lines first.
Common causes include currency text, formulas returning blanks, negative values, hidden subtotal rows or an incorrect debit and credit mapping. Compare the source row count and total with the on-page summary.
The output follows the supported NACHA structure, but acceptance also depends on your ODFI profile, approved SEC codes, effective dates and identifiers. remove formulas or merged cells that obscure payment values and always validate the result before bank upload.
Technical explanations are checked against these primary sources. Bank-specific requirements can be narrower than general format guidance.
Sources reviewed August 20, 2026. Nacha owns and maintains the linked materials.
ACH files use the NACHA fixed-width format: every record is 94 characters, files contain one or more batches, and control records reconcile entry counts, routing-number hashes, debits and credits. Always confirm bank-specific settings with your financial institution before uploading a production file.