.WR1 File Extension
File TypeLotus Symphony Worksheet File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a WR1 file?
A WR1 file is a worksheet used by Lotus Symphony, a popular spreadsheet program in the 1980s for the MS-DOS operating system. It stores one or more sheets of data organized into a grid of rows and columns of cells.
WR1 files are only supported by the MS-DOS version of Lotus Symphony, not the version released in 2007 that goes by the same name. There is no program available to open the WR1 file.
NOTE: Lotus Symphony was developed by Lotus Development, which changed to Lotus Software when it was acquired by IBM in 1995.