123 to CSV Converter
Convert your 123 Lotus 1-2-3 spreadsheet into organized CSV rows for imports and data analysis. Secure processing, free downloads, no account required.
Drop your 123 files here
Up to 50MB per file.
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your 123 files
Drag and drop or select 123 files from your device. You can upload multiple files at once.
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Configure Output
Start the conversion. Crest Convert will prepare the CSV file using the appropriate format engine.
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Download CSV files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert 123 to CSV?
123 is a Lotus 1-2-3 spreadsheet used for financial models, business records, tables, and archived workbook data. Converting it to CSV creates a simple tabular data format used by spreadsheets, databases, and data tools, ready for workflows that use the destination format.
CSV opens in Excel, Google Sheets, Apple Numbers, LibreOffice Calc, database tools, and most programming languages.
Frequently Asked Questions
How do I convert 123 to CSV?
Add your 123 spreadsheet, start the conversion, and download organized CSV rows ready for spreadsheets and imports.
What is a 123 file?
123 is a later Lotus 1-2-3 workbook format used for tables, formulas, financial models, business records, and archived spreadsheet data.
What does converting 123 to CSV do?
The converter reads the legacy Lotus worksheet and creates organized CSV rows ready for spreadsheets and imports.
How is spreadsheet data arranged in the CSV file?
Worksheet values are exported in a structured CSV layout for convenient importing, editing, and analysis.
Can I convert several 123 files?
Yes. Add multiple 123 files and download a separate CSV result for each spreadsheet.
Is 123 to CSV conversion secure?
Yes. Files are transferred over an encrypted connection, processed securely, and automatically removed after conversion. No account is required.