Convert OpenOffice.org Calc spreadsheets into a Microsoft Excel file to take advantage of Excel's built-in tools. OpenOffice.org spreadsheets default to a .xsc file extension, which certain versions ...
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Why the XLS format needs to disappear from your hard drive forever
Upgrade to XLSX for smaller file sizes, enhanced security, modern collaboration features, and to prevent accidental data loss.
Mesa, the Mac OS X spreadsheet software with icon-based interface from P&L Software, has been updated and offers improved Excel support. You can now import Excel ...
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