How to download and setup phpspreadsheet-bundle
Open terminal and run command
                                            git clone https://github.com/eightyknots/phpspreadsheet-bundle.git
                                        
                                        git clone is used to create a copy or clone of phpspreadsheet-bundle repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with phpspreadsheet-bundle https://github.com/eightyknots/phpspreadsheet-bundle/archive/master.zip
Or simply clone phpspreadsheet-bundle with SSH
                                            [email protected]:eightyknots/phpspreadsheet-bundle.git                                    
                                    If you have some problems with phpspreadsheet-bundle
You may open issue on phpspreadsheet-bundle support forum (system) here: https://github.com/eightyknots/phpspreadsheet-bundle/issuesSimilar to phpspreadsheet-bundle repositories
Here you may see phpspreadsheet-bundle alternatives and analogs
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