Is the Excel to IIF Converter really free?

Yes, completely free with no signup required.

Does my Excel file get uploaded to a server?

No. All processing happens locally in your browser using JavaScript. Nothing is uploaded.

What does the IIF output look like?

The output is a tab-delimited IIF file with a header line from your Excel column names and one data line per row.

What will the output file be named?

The output IIF file will have the same base name as your input Excel file, with the extension changed to .iif.

Free Excel to IIF Converter | FinancialDataTools.com

Source Excel

Drop to load

Excel file (.xlsx)

📗

Drop a Excel file or click Open

Supports .xlsx, .xls, .csv

About the Free Excel to IIF Converter

The FinancialDataTools.com Excel to IIF Converter is a free, browser-based tool for converting Excel (XLSX) files to IIF format. It runs entirely in your browser — no file is ever uploaded to any server.

How It Works

Drop your Excel file onto the left panel or click Open to browse. Your source data is previewed in a table. Click Convert to IIF to generate the output in the right panel. Click Export IIF to download the result file.

Privacy and Security

All file processing happens inside your browser using JavaScript. No file content is transmitted to any server. Your financial data stays private on your device.

Free Excel to IIF Converter — Free Excel to IIF Converter — Convert Excel XLSX to QuickBooks IIF Online