The .XLR format is the primary file extension for spreadsheets created using Microsoft Works.
Microsoft Works is an office suite available from the Microsoft Corporation. It is considered by most to be a smaller, less expensive version of the Microsoft Office suite; it includes the Microsoft Works word processor, the Works spreadsheet, and the Works database.
.XLR files are spreadsheets or charts created within 'Works', XLR files are fully importable into Microsoft Excel, Excel spreadsheets however are not fully compatible with Works and certain cell properties or data characteristics may be lost when importing Excel worksheets into Works.
If you need to open a .XLR spreadsheet but don't have Works or Excel installed on your computer try downloading the free Excel viewer (see links).
Apart from the XLR format Microsoft Works can also save worksheets into any of the following formats:
* .BKS - Works backup files.
* .WKS - Works for windows 3.0 - Works 2000 spreadsheets.
* .CSV - Comma seperated variable databases.
* .TXT - ASCII unformatted tab-delimited text files.
* .XLS - Excel worksheets.
* .WK1 - Lotus 1-2-3 files.