Bulk-Convert Lotus 1-2-3Files
No Lotus 1-2-3 Needed.
Preserve multi-sheet workbooks, formulas, and named ranges into XLSX — plus PDF, HTML, Markdown, CSV, or XLS. Trial your own files on Windows.
Free trial
Full app features — up to 10 files
Windows 10 or 11
Free Windows trial on PC · 10 files · Requires Windows 10 or 11
Don't Risk Legacy Spreadsheet Data with Free Cloud Converters
Lotus archives often contain payroll, pricing, client ledgers, forecasts, and regulated operational records.
The Risk
Cloud converters may retain confidential spreadsheets or process them outside your approved data boundaries.
The Scale Problem
Opening files one at a time does not work for departmental archives or acquisition data rooms.
The Format Gap
Old .123, .wk1, .wk3, .wk4, and .wks files need modern outputs before teams can search, analyze, or preserve them.
You converted the spreadsheets. Now search them.
Standard converts Lotus 1-2-3 workbooks locally on this PC. Plus unlocks Conversion Library — a private library of the spreadsheets you converted. Search cells, tags, knowledge maps, and workbook previews. Same installer. Unlock with a Plus key. Nothing is uploaded.
- Full-text search across converted XLSX, PDF, CSV, HTML, and Markdown on this PC
- Tags and knowledge maps for related Lotus workbooks
- Built-in previews — Excel, PDF, and more
Plus add-on $29.95 if you already have Standard. Standard + Plus from the start is $69.90.
What Matters for Lotus Migration
Standalone conversion with workbook fidelity — then Explorer shortcuts and bulk archive throughput
No Lotus 1-2-3 Needed
Don't hunt down a 25-year-old Lotus or SmartSuite license just to open old workbooks. Lotus Converter is fully standalone — no IBM/Lotus software, no Excel add-ins, no third-party runtimes. Install and convert.
100% Local Processing
Lotus Converter works where your spreadsheets are. Workbooks stay on your machine, behind your firewall — suitable for SOX, GLBA, HIPAA, and contractual confidentiality obligations that prohibit cloud uploads of regulated data.
Multi-Sheet & Formula Fidelity
Purpose-built for Lotus 1-2-3. We preserve every tab in a multi-sheet .wk4 or .123 workbook in the XLSX output, keep number formats intact, and translate cells, formulas, and named ranges where the source data allows.
Explorer & Watch Folders
Right-click a Lotus file or folder in Windows Explorer for a focused quick-convert, or point a watch folder at a migration drop zone so new .wk1, .wk3, .wk4, or .123 files convert automatically as they land.
True Bulk Automation
Point Lotus Converter at entire folder trees and recursively convert thousands of legacy workbooks. Tick multiple outputs in one pass, and optionally mirror your archive's folder hierarchy in the converted output.
Supported formats
Convert common Lotus 1-2-3 and Symphony-era spreadsheet files into modern formats for review, archive, analytics, and AI preparation.
Inputs
.123, .wk1, .wk3, .wk4, .wks
Outputs
XLSX, PDF, HTML, Markdown, CSV, XLS
Simple, Transparent Pricing
One-time purchase. No subscriptions. No hidden fees.
Start with the full-feature trial — test up to 10 Lotus files.
Free Windows trial on PC
Step 1
Who is this for?
Step 2
Choose Standard or Standard + Plus
Products are Standard and Plus — licensed for personal use.
Standard
one-time · personal use
- Unlimited Lotus conversions
- All 6 spreadsheet formats (XLSX, PDF, HTML, Markdown, CSV, XLS)
- Lifetime access to version 6.x
- Bulk & folder processing
- 1 year of free updates
- 30-day money-back guarantee
Want search and spreadsheet previews? Conversion Library Plus is an add-on ($29.95).
Standard + Plus
one-time · personal · two licenses
- Standard (unlimited conversions)$39.95
- Plus (Conversion Library)$29.95
- Full-text search across converted workbooks on this PC
- Tags to organize related Lotus archives
- Knowledge maps linking related spreadsheets
- Built-in spreadsheet previews (Excel, PDF, and more)
- Same Windows installer — unlock with a Plus key
Already have Standard? Add Plus ($29.95)
More than Lotus files?
Legacy File Converter · from $79.95
For WordPerfect, Quattro Pro, images, and 100+ legacy formats — fully offline, from the same team.
FAQ
Does Lotus 1-2-3 Converter require Lotus 1-2-3 to be installed?
No. It is a standalone Windows application that uses a bundled conversion engine and does not require Lotus 1-2-3.
Do my spreadsheets leave my computer?
No. Conversion happens locally on your Windows computer. Files are not uploaded to our servers.
Is there a free trial?
Yes. The free trial lets you convert up to 10 files to test the software.
What is Conversion Library Plus?
Standard converts Lotus 1-2-3 spreadsheets locally on your PC. Plus unlocks Conversion Library — search, tags, knowledge maps, and spreadsheet previews of the workbooks you converted. Same installer; unlock with a Plus key ($29.95 add-on, or $69.90 for Standard + Plus). Nothing is uploaded. Learn more about Conversion Library.