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<form action="project.php" id="xsImportForm" class="form-horizontal" method="post" enctype="multipart/form-data">
                                    <p><strong>Import Save Project</strong></p>
                                    <div>
                                        <button class="btn btn-inverse btn-file btn-lg"><i class="fa fa-upload"></i> &nbsp;Browse Project File
                                            <input type="file" id="xsDgnInput" name="xsImportDesign" multiple />
                                        </button>

                                    </div>
                                    <input id="xsImpStatus" type="hidden" name="status" value="xsImpFile"/>
                                </form>




//project

<?php
	if(isset($_POST['status']) && $_POST['status'] === "xsExpFile" && !empty($_POST['xsJSONFile'])) {
		header( 'Content-Description: File Transfer' );
		header( 'Content-Type: application/octet-stream' );
		header( 'Content-Disposition: attachment; filename=builder.xs' );
		header( 'Content-Transfer-Encoding: binary' );
		header( 'Connection: Keep-Alive' );
		header( 'Expires: 0' );
		header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0' );
		header( 'Pragma: public' );

		echo $_POST['xsJSONFile'];

	}
        if((isset($_FILES['xsImportDesign']))  && $_POST['status'] === "xsImpFile"){
            $ImpFile = file_get_contents($_FILES['xsImportDesign']['tmp_name']);

            exit(json_encode(array('data' => $ImpFile)));
        }