How to Export data from Database to Excel Sheet using Phpspreadsheet in php 

How to 1.protect worksheets and restrict user actions like row and column insertion, deletion, and resizing using php spreadsheet 2.Protect cells using a lock cell feature to restrict user editing action in selected cells using php spreadsheet 3.hide formula and set invisible using php spreadsheet

Sir can you make a tutorial of multiple file importing to database usign PHPSpreadsheet? Thank you.

Спасибо большое долго искал как это сделать

sir. please can you guide me on how to use composer in vs-code, because I have install composer as well as PHP 7 but still I keep getting this error code from the terminal composer: The term 'composer' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

May I have your code? Thanks!

source code