# Excel tutorials, functions and advanced formula examples, page 25

## How to compare two columns in Excel for matches and differences

The tutorial demonstrates a number of techniques to compare and match two or more columns in Excel with formulas, conditional formatting and the specialized wizard. Continue reading

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## Most useful Excel functions with formula examples

This page can be your entry point to learning Microsoft Excel functions. It lists the most essential text, math, statistical, logical and other functions along with formula examples and links to related resources. Continue reading

## How to round numbers in Excel - ROUND, ROUNDUP, ROUNDDOWN and other functions

The tutorial explains the uses of ROUND, ROUNDUP, ROUNDDOWN, FLOOR, CEILING, MROUND and other Excel rounding functions and provides formula examples to round decimal numbers to integers or to a certain number of decimal places, extract a fractional part, round to nearest 5, 10 or 100, and more. Continue reading

## How to merge cells in Excel without losing data

The tutorial demonstrates different techniques to quickly merge two cells in Excel and combine multiple cells without losing data in Excel 2016, 2013, 2010 and lower. Continue reading

## CONCATENATE in Excel: combine text strings, cells and columns

In this tutorial, you will learn various ways to concatenate text strings, cells, ranges, columns and rows in Excel using the CONCATENATE function and "&" operator. Continue reading

## How to generate random numbers in Excel - RAND and RANDBETWEEN functions

The tutorial explains the specificities of the Excel random number generator algorithm and demonstrates how to use RAND and RANDBETWEEN functions in Excel to generate random numbers, dates, passwords and other text strings. Continue reading

## How to convert time to decimal number, hours, minutes or seconds in Excel

The tutorial demonstrates different ways to convert time to decimal in Excel. You will find a variety of formulas to change time to hours, minutes or seconds as well as convert text to time and vice versa. Continue reading

## How to calculate time in Excel - time difference, adding / subtracting times

The tutorial explains different ways to calculate times in Excel and demonstrates several methods of adding times and calculating time difference. You will learn a few useful formulas to sum times and add hours, minutes or seconds to a given time. Continue reading

## Excel time format & how to use NOW and TIME functions to insert time

In this tutorial, you will learn the specificities of Excel time format as well as how to add a timestamp using shortcuts or insert updatable current time using the NOW function. You will also learn how to apply special Excel time functions to get hours, minutes or seconds from a time stamp. Continue reading

## Beyond Spelling and Grammar Check

In this guest post, Daniel Heuman of Intelligent Editing, explains how you can use PerfectIt to take the proofreading capabilities of MS Word to an entirely new level. Continue reading

## Excel date functions - formula examples of DATE, TODAY, etc.

This is the final part of our Excel Date Tutorial that offers an overview of all Excel date functions, explains their basic uses and provides lots of formula examples. Continue reading

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## Using DATE function in Excel - formula examples to calculate dates

The tutorial explains the syntax and uses of the Excel DATE function and provides formula examples for calculating dates. Continue reading

## Excel DATEDIF - calculate difference between two dates in days, weeks, months or years

In this tutorial, you will find a simple explanation of the Excel DATEDIF function and a few formula examples that demonstrate how to compare dates and calculate the difference in days, weeks, months or years. Continue reading

## Calculating weekdays in Excel - WORKDAY and NETWORKDAYS functions

This short tutorial explains the use of Excel NETWORKDAYS and WORKDAY functions to calculate workdays with custom weekend parameters and holidays. Continue reading

## How to add and subtract dates, days, weeks, months and years in Excel

In this tutorial, you will find a variety of useful formulas to add and subtract dates in Excel, such as subtracting two dates, adding days, months and years to a date, and more. Continue reading

## How to convert date to year in Excel & calculate age from date of birth

This tutorial explains the syntax and uses of the Excel YEAR function and provides formula examples to extract year from date, convert date to month and year, calculate age from the date of birth and determine leap years. Continue reading

## Calculating week number in Excel (WEEKNUM function)

In this short tutorial, we will briefly talk about the syntax and arguments of Excel WEEKNUM, and then discuss a few formula examples demonstrating how you can use the WEEKNUM function to calculate week numbers in your Excel worksheets. Continue reading

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