Manufacturing ERP Archives: Converting Lotus Spreadsheets Before They Disappear
How manufacturers can modernize production schedules, BOM extracts, and costing sheets stored in Lotus 1-2-3 formats.
This guide is written for manufacturing IT and operations teams who need to recover useful records from Lotus 1-2-3 spreadsheets without sending sensitive files to a cloud converter.
Common places Lotus files hide
Legacy ERP exports, plant-level capacity plans, bill-of-material snapshots, MRP calculations, and costing workbooks often survived as .wk1 or .wks files because they were copied forward during every system migration.
Those files matter during audits, product-line research, warranty analysis, and acquisitions.
Conversion priorities
Use XLSX for spreadsheets that need review, CSV for analytics ingestion, and PDF for immutable archive snapshots. Keep a conversion log with source path and output path for chain-of-custody.
Outputs to keep in the migration package
Lotus 1-2-3 Converter supports XLSX, PDF, HTML, Markdown, CSV, XLS so the same archive can serve human review, analytics import, compliance retention, and AI/RAG preparation.
Final checks before you archive the originals
Keep the original Lotus files, review a sample from each folder, and store conversion results in a separate output location. For regulated or client data, document who ran the conversion and where the resulting files were stored.
Ready to convert your Lotus 1-2-3 files?
Install the Windows trial and test the full local conversion workflow on up to 25 legacy spreadsheet files before buying a lifetime license.
Free trial
Full app features - up to 25 files
Windows 10 or 11
Same free trial whether you use the Microsoft Store or the offline MSI - pick the option that fits your PC or IT policy.
| Microsoft StoreRecommended | Offline MSIAir-gapped or scripted |
|---|---|
MSI coming soon Same trial as Store |