.WK1 File Overview

File Extension:	WK1
File Type Description:	Lotus Worksheet
File Type Developer:	IBM
Primary Associated Software:	Microsoft Excel
Primary Software Developer:	Microsoft Corporation

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What is File Extension WK1?

Apache Software Foundation created the Lotus Worksheet (WK1) file for the Apache OpenOffice Calc software series. User statistics infer that these WK1 files are popular with users from China and most frequently found on the Windows 10 platform. A high percentage of these users browse the web using Google Chrome.

Associated Developers and Software

	Apache OpenOffice Calc by Apache Software Foundation
	NeoOffice by Planamesa Software Inc.
	LibreOffice Calc by The Document Foundation
	Gnumeric by Open Source
	Microsoft Excel by Microsoft Corporation
	Lotus 1-2-3 by IBM
	Corel Quattro Pro by Corel
	IBM Collaboration Solutions by IBM

Top WK1 User Languages

Top WK1 File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	iOS
	Android
	Linux

Other File Types Related to WK1 Files

Extension	File Type Developer	File Category	File Type Description
.SSH	Microsoft Corporation	Web Files	Microsoft Internet Explorer Style Sheet
.XESC	Microsoft Corporation	Graphic Files	Microsoft Expression Encoder Screen Capture Data
.RPY	Team Shanghai Alice	Game Files	Touhou Project Replay File
.BTAB	Microsoft Corporation	Text Files	Base Guitar Tabulature Data
._VWDXSLN90	Microsoft Corporation	Data Files	Microsoft Visual Studio Launcher File
.X3D	Microsoft Corporation	3D Image Files	Compiled Vertex Shader File
.SHB	Microsoft Corporation	Executable Files	Windows Document Shortcut
.IAF	Microsoft Corporation	Settings Files	Outlook Internet Account File
.VUD	Microsoft Corporation	Data Files	Virtual Machine Undo Drive File
.FLM	Image-Line	Audio Files	FL Studio Mobile Song File