What Is Lotus 1-2-3? (from IBM)

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Lotus 1-2-3

	Developer Name:	IBM
	Latest Version:	9.8.2
	Software Category:	Business
	Software Sub Category:	Spreadsheet
	Operating Systems:	Windows, Mac

Software Overview

Lotus 1-2-3 is a discontinued spreadsheet program from Lotus Software (later part of IBM). It was the IBM PC's first killer application, was hugely popular in the 1980s and contributed significantly to the success of the IBM PC. The first spreadsheet, VisiCalc, had helped launch the Apple II as one of the earliest personal computers in business use.

Software Website Developer Website

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Associated Registry Keys

HKEY_LOCAL_MACHINE\SOFTWARE\IBM\Lotus1-2-3
HKEY_CURRENT_USER\SOFTWARE\Lotus1-2-3

Supported File Extensions

File Extension	File Extension Type	File Type Creator/Developer
123	Lotus 1-2-3 Spreadsheet	IBM
ADN	Lotus 1-2-3 Add-in	IBM
APC	Lotus Printer Driver Characters	IBM
DLD	Lotus 1-2-3 Data	IBM
DVC	Lotus 1-2-3 Data	IBM
FMT	Lotus 1-2-3 File	IBM
IMP	Improv Spreadsheet File	Lotus Software
LBR	Lotus 1-2-3 Display Driver Data	IBM
LWD	LotusWorks Text Document	IBM
PFL	Lotus Freelance For DOS 4.0 Portfolio Presentation	IBM
PRN	Lotus 1-2-3 Formatted Text File	IBM
RI	IBM Lotus 1-2-3 File	IBM
SMI	IBM Lotus Smart Icons	IBM
TMD	Lotus TvMap Document File	IBM
WG1	Lotus 1-2-3 Worksheet File	IBM
WG2	IBM Lotus 1-2-3 File	IBM
WJ3	Lotus 1-2-3 Worksheet File	IBM
WK!	Lotus 1-2-3 Spreadsheet	IBM
WK1	Lotus Worksheet	IBM
WK4	Lotus Lotus 1-2-3 V4 Worksheet	IBM
WKE	Lotus 1-2-3 Educational Version Worksheet	IBM
WR!	Lotus 1-2-3 Spreadsheet	IBM

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