Excel Spreadsheets are a type of files whose extension is .XLS and can be opened with Microsoft Excel or a free viewer that will allow users to open and see XLS files, but they cannot update. These files are for maintaining lists, planning projects and for analyzing data stored in cells arranged in rows and columns.
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You can open Excel spreadsheets file with Microsoft Excel or a free viewer.
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Excel Spreadsheets are a type of files whose extension is .XLS and can be opened with Microsoft Excel or a free viewer that will allow users to open and see XLS files, but they cannot update. These files are for maintaining lists, planning projects and for analyzing data stored in cells arranged in rows and columns.
For more: http://www.softango.com/extensions/xls