Petros

Petros

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hard drive safe

Don't throw out that old hard drive from your computer! Whether it's functional or not, your old drive still has some cool uses.

Beyond If and Sum: 15 very useful microsoft excel formulas for everyone | Chandoo.org - Learn Microsoft Excel Online

Excel formulas can always be very handy, especially when you are stuck with data and need to get something done fast. But how well do you know the spreadsheet

Learn Eight Helpful Microsoft Excel Tricks with This Handy Cheat Sheet

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