">Zip</span><span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">open_buffer</span>(<span class="ruby-identifier">buffer</span>) { <span class="ruby-operator">|</span><span class="ruby-identifier">zip_file</span><span class="ruby-operator">|</span> <span class="ruby-identifier">root</span> = <span class="ruby-constant">RubyXL</span><span class="ruby-operator">::</span><span class="ruby-constant">WorkbookRoot</span>.<span class="ruby-identifier">parse_zip