# There are 16 free training classes of how to use office suite for undefined

Use SUM function to quickly calculate the sum

01:31*Spreadsheet*66.9K views

A quick way to calculate sum, average, count, max, and min

01:34*Spreadsheet*42.1K views

Use IF function to judge data

01:48*Spreadsheet*35.9K views

Use Date function to convert date format

01:50*Spreadsheet*31.8K views

How to use the FILTER Function

03:14*Spreadsheet*29.6K views

Use COUNTIF function for conditional statistics

01:32*Spreadsheet*28.7K views

AVERAGE function quickly average data

00:57*Spreadsheet*24.8K views

Use COUNT function to count the number of cells with parameters

01:20*Spreadsheet*21.3K views

Use the Today function to quickly calculate days between dates

01:57*Spreadsheet*20.5K views

Use the DATEDIF function to calculate the intervals of dates

03:12*Spreadsheet*19.1K views

How to use the VLOOKUP function

04:29*Spreadsheet*18.5K views

TEXT formula in WPS Spreadsheet

03:09*Spreadsheet*18.5K views

SUBTOTAL function: Calculate the data with the hidden value

02:33*Spreadsheet*18.2K views

Use SUMIFS function with multiple criteria

02:27*Spreadsheet*16.1K views

Use the ROUND function to round decimals quickly

01:57*Spreadsheet*15.8K views

COUNTIFS function: count data of multiple criteria

01:57*Spreadsheet*14.0K views

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