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Your Excel workbook is slower than it should be—these two hidden settings are usually why

Changing calculation behavior and enabling full CPU usage can significantly reduce lag in large, formula-heavy spreadsheets.
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Excel: The software that's hard to quit

In the 1990s some computer games had a "boss key" that allowed staff to call up an Excel spreadsheet if they needed to look like they were working. Now bosses might frown upon a worker caught ...