Excel Made Easy - Sum, Sumif and Sumifs Functions in Microsoft Excel

In Excel, `SUM`, `SUMIF`, and `SUMIFS` are functions used to perform summation operations based on different criteria:

###Excel Made Easy

### SUM
The `SUM` function is the simplest and most commonly used summation function. It adds up all the numbers in a specified range of cells. You can use it to sum numbers in contiguous or non-contiguous ranges.

### SUMIF
The `SUMIF` function extends the capabilities of the `SUM` function by adding a conditional aspect. It sums the values in a range that meet a single specified criterion. The function takes three arguments: the range of cells to evaluate, the condition that must be met, and the range of cells to sum.

### SUMIFS
The `SUMIFS` function is an extension of the `SUMIF` function that allows for multiple criteria. It sums the values in a range that meet multiple specified conditions. This function takes multiple pairs of range/criteria arguments, enabling more complex and specific summations based on multiple criteria.

These functions are essential for data analysis, allowing users to perform both simple and complex summation operations with or without conditions.

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