Lotus 1-2-3 worksheet template
File type: Document file
A wt4 file is a worksheet template used by the Lotus 1-2-3 spreadsheet editor.
It provides a predefined worksheet that can be used as the starting point for a new spreadsheet.
File type category:
Document file
Date updated: October 6, 2026
Record marked as obsolete and not updated for a long time.
The wt4 file extension is associated with Lotus 1-2-3, a spreadsheet program originally developed by Lotus Development Corporation. The file stores a worksheet template for reuse in that program.
A template can provide a prepared worksheet layout and other predefined spreadsheet content, allowing users to create new worksheets without starting from an empty sheet. The WT4 format is associated with the Microsoft Windows edition of Lotus 1-2-3.
Lotus 1-2-3 was also released for OS/2, Mac OS, and MS-DOS, but the WT4 record concerns the Windows software. The format is obsolete and is no longer commonly used.
Open the wt4 file with Lotus 1-2-3 for Microsoft Windows. Because the software and format are obsolete, an older Windows environment may be required if the program does not run on a current system.
Lotus 1-2-3 can open a WT4 worksheet template and export its contents to another format supported by the program. Open the template and use the program's save or export command to create the required file.
Software applications that can open wt4 files:
Microsoft Windows
Software applications that can edit wt4 files:
Microsoft Windows
Software capable of saving wt4 files:
Microsoft Windows
Software apps that create wt4 files:
Microsoft Windows
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