.WK3 File

The wk3 file extension is associated with Lotus 1-2-3 version 3.x and used for editing of spreadsheet documents. Lotus 1-2-3 is a discontinued product.

The wk3 files were used as the default spreadsheet format of  Lotus 1-2-3 version 3.x.

MIME types:
application/vnd.lotus-1-2-3
application/x-123
application/lotus123
application/x-lotus123
application/wk3
application/x-lotus123
application/x-wk3

This wk3 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

A wk3 file extension is related to the Lotus 1-2-3, a spreadsheet document editor developed by IBM. A wk3 file contains spreadsheet created in the Lotus 1-2-3.

How to open:

Use Lotus 1-2-3 version 3.x or later to open the *.wk3 files.Also some modern spreadsheets programs can still open the *.wk3 files. However the latest versions of Microsoft Excel 2007/2010 no longer support that format. You can have luck with any earlier version of Excel, but you will probably lose most of the formatting from the *.wk3 files.

How to convert:

You can open *.wk3 in Microsoft Excel and save it to another file format. You will probably lose formatting.