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
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-wk1Identifying characters
Hex: 00 00 02 00 06 04 06 00 08 00 00 00 00 00 , ASCII:
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database
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.