There are 16 free training tutorials of how to use office suite for Functions and Formulas

COUNTIFS function: count data of multiple criteria

Look up data quickly with LOOKUP function

How can we use RANK function

Use MATCH function to search location information

The INDEX function

The Advanced XLOOKUP Function

Elementary arithmetic functions in WPS Spreadsheet

The SUMPRODUCT function for quick calculation of total sales

Use the ROW function to mark the row number

Combine the SUBSTITUTE and LEN functions

How to make a simple lottery through the RANDBETWEEN Function?

The AND Function in WPS Spreadsheet

How to use the MID function in WPS Spreadsheet

INDEX MATCH formulas

Create a countdown calendar & Insert current time and date

Use the text function to extract characters in cells