MS Excel
Rounding errors can occur

When you use multiplication, division, or exponentiation in a formula
Because excel uses hidden decimal places in computation
When you show the results of formulas with different decimal places that the calculated results
When you use addition and subtraction in a formula

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MS Excel
Text formulas:

Replace cell references
Show formula error value
Return ASCII values of characters
Concatenate and manipulate text

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MS Excel
Which of the following is invalid statement?

You can set the column width automatically fit the amount of text
Sheet tabs can be colored
The width of a row and be specified manually or fit automatically
Some picture can be applied as a background of a sheet

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