Lotus 1-2-3 File Format

The Lotus 1-2-3 file format is the format used by the Lotus 1-2-3 spreadsheet, which is now part of the office suite called SmartSuite.

Name:	Lotus 1-2-3
Extensions:	.wk1,.wks
Compatible Programs:	Lotus SmartSuite
Open / Save:	Open only.

Limitations
Plugin: Supported by the 'Lotus 123' plugin.
Format Details
Further Processing: Many spreadsheet programs support this format.