WindowsHandy shortcuts and file handling

ExcelBasic formulas

How do formulas work?

• Formulas: why?• Dynamic• Save time• Avoid mistakes

• Entering formulas• Formula bar• Equal sign (=)

• AutoFill• Select range + Drag• Select range + Doubleclick

Formulas: some examples

• Math• Add/Subtract/Multiply/Divide• SUM

• SUM(3,6,9)• SUM(A1,A4,A5)• SUM(A1:B5)

• ROUND

• Date/Time• Time difference• Date difference

Formulas: some examples (2)

• Text• Combine text and numbers

(CONCATENATE)• Remove characters from text

(LEFT/RIGHT/MID)

• Lookup• VLOOKUP• HLOOKUP

Browse through formulas• x (insert function)

• http://office.microsoft.com/en-us/excel-help/examples-of-commonly-used-formulas-HP005200127.aspx

Formula references

• Relative• Default• Changes when copying

• Absolute• dollar sign (‘$’)

• Mixed• $A2• B$1

• F4 to switch between types

Error messages

Error Meaning

#DIV/0! Trying to divide by 0

#N/A! A formula or a function inside a formula cannot find the referenced data

#NAME? Text in the formula is not recognized

#NULL! A space was used in formulas that reference multiple ranges; a comma separates range references

#NUM! A formula has invalid numeric data for the type of operation

#REF! A reference is invalid

#VALUE! The wrong type of operand or function argument is used

Q&A

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