Convert XLSX to 123

Understanding xlsx and 123 file formats

XLSX is the modern spreadsheet file format used by Microsoft Excel, introduced with Office 2007. It is based on the Open XML standard and supports advanced features like formulas, charts, and macros. 123 files are spreadsheet documents created by Lotus 1-2-3, a pioneering spreadsheet application popular in the 1980s and 1990s. The 123 format is now considered obsolete, but some legacy systems and users may still require it.

Why convert xlsx to 123?

Converting XLSX to 123 is necessary when sharing data with users or systems that only support Lotus 1-2-3. This is common in certain legacy business environments or for archival purposes.

How to convert xlsx to 123

Direct conversion from XLSX to 123 is not natively supported by modern spreadsheet software. However, you can use a two-step process:

1. Open your XLSX file in Microsoft Excel.
2. Save the file as an older Excel format: File → Save As → Excel 97-2003 Workbook (*.xls).
3. Open the resulting XLS file in a compatible program, such as Lotus 1-2-3 (if available) or IBM Lotus SmartSuite.
4. Export or save the file as a 123 file: File → Save As → Lotus 1-2-3 (*.123).

If you do not have access to Lotus 1-2-3 or SmartSuite, consider using a virtual machine or emulator with the software installed, as there are no modern online converters that support this legacy format directly.

Best software for xlsx to 123 conversion

• IBM Lotus SmartSuite (includes Lotus 1-2-3): Best for direct conversion if you have access to the software.
• Microsoft Excel (older versions): Use for initial conversion to XLS format.

Note: Both Lotus 1-2-3 and SmartSuite are discontinued and may require legacy hardware or emulation to run.

Summary

Converting XLSX to 123 is possible through a two-step process involving saving as XLS and then using Lotus 1-2-3 or SmartSuite to export to the 123 format. Due to the legacy nature of the 123 format, access to older software is required.