File Extension WK1

.WK1 File

File extension: WK1
File type: Spreadsheet File


Notes about the WK1 file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The WK1 file type is primarily associated with '1-2-3' by IBM. Lotus 1-2-3 versions 1 & 2 spreadsheet. This was a Lotus product. Lotus was bought out by IBM.

Detailed information for file extension WK1:


Primary association: 1-2-3
Company: IBM
Mime type: application/vnd.lotus-1-2-3, application/x-123, application/lotus123, application/x-lotus123, application/wk1, application/vnd.ms-excel, zz-application/zz-winassoc-wk1
Identifying characters Hex: 00 00 02 00 06 04 06 00 08 00 00 00 00 00 , ASCII:
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension WK1 click this link to expand/hide the additional area.

System Info for File Extension .WK1

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: 123Worksheet
EXEFile: C:\lotus\123\123w.exe %1

ProgramID: MoreInfo
EXEFile: %ProgramFiles%\Netzip Classic\MoreInfo.exe %l

ProgramID: wk1file
EXEFile: %ProgramFiles%\Verity\KVLotus\KVLOTUS.EXE %1

ProgramID: 123Worksheet
EXEFile: %ProgramFiles%\lotus\123\123w.exe %1

ProgramID: Pagis.EDoc
EXEFile: %ProgramFiles%\ScanSoft\Pagis\EDocView.exe


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