123 SPREADSHEET Converter
Convert 123 SPREADSHEET spreadsheet documents to a variety of formats, edit and optimize documents online and free.
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The 123 file extension is associated with Lotus 1-2-3, a spreadsheet program developed by Lotus Development Corporation and later acquired by IBM. Introduced in 1983, Lotus 1-2-3 was known for its three main capabilities: spreadsheets, charting, and basic database operations. The 123 format, introduced in 1997, replaced earlier formats like WK4 and was used to store data in rows and columns, supporting various functions and calculations. Although IBM discontinued Lotus 1-2-3 in 2013, the 123 file format remains a legacy format.
Click Choose File to browse and select the 123 SPREADSHEET spreadsheet document you want to process.
Define the output format for the 123 SPREADSHEET spreadsheet document you are processing.
Give the system a moment to finalize, then download your file.
Vertopal CLI must be installed to handle 123 SPREADSHEET spreadsheet document conversions correctly.