azadisaryev/convertExcel2Sheets

## convertExcel2Sheets
/**
 * Convert Excel file to Sheets
 * @param {Blob} excelFile The Excel file blob data; Required
 * @param {String} filename File name on uploading drive; Required
 * @param {Array} arrParents Array of folder ids to put converted file in; Optional, will default to Drive root folder
 * @return {Spreadsheet} Converted Google Spreadsheet instance
 **/
function convertExcel2Sheets(excelFile, filename, arrParents) {

  var parents  = arrParents || []; // check if optional arrParents argument was provided, default to empty array if not
  if ( !parents.isArray ) parents = []; // make sure parents is an array, reset to empty array if not

  // Parameters for Drive API Simple Upload request (see https://developers.google.com/drive/web/manage-uploads#simple)
  var uploadParams = {
    method:'post',
    contentType: 'application/vnd.ms-excel', // works for both .xls and .xlsx files
    contentLength: excelFile.getBytes().length,
    headers: {'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()},
    payload: excelFile.getBytes()
  };

  // Upload file to Drive root folder and convert to Sheets
  var uploadResponse = UrlFetchApp.fetch('https://www.googleapis.com/upload/drive/v2/files/?uploadType=media&convert=true', uploadParams);

  // Parse upload&convert response data (need this to be able to get id of converted sheet)
  var fileDataResponse = JSON.parse(uploadResponse.getContentText());

  // Create payload (body) data for updating converted file's name and parent folder(s)
  var payloadData = {
    title: filename,
    parents: []
  };
  if ( parents.length ) { // Add provided parent folder(s) id(s) to payloadData, if any
    for ( var i=0; i<parents.length; i++ ) {
      try {
        var folder = DriveApp.getFolderById(parents[i]); // check that this folder id exists in drive and user can write to it
        payloadData.parents.push({id: parents[i]});
      }
      catch(e){} // fail silently if no such folder id exists in Drive
    }
  }
  // Parameters for Drive API File Update request (see https://developers.google.com/drive/v2/reference/files/update)
  var updateParams = {
    method:'put',
    headers: {'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()},
    contentType: 'application/json',
    payload: JSON.stringify(payloadData)
  };

  // Update metadata (filename and parent folder(s)) of converted sheet
  UrlFetchApp.fetch('https://www.googleapis.com/drive/v2/files/'+fileDataResponse.id, updateParams);

  return SpreadsheetApp.openById(fileDataResponse.id);
}

/**
 * Sample use of convertExcel2Sheets() for testing
 **/
 function testConvertExcel2Sheets() {
  var xlsId = "0B9**************OFE"; // ID of Excel file to convert
  var xlsFile = DriveApp.getFileById(xlsId); // File instance of Excel file
  var xlsBlob = xlsFile.getBlob(); // Blob source of Excel file for conversion
  var xlsFilename = xlsFile.getName(); // File name to give to converted file; defaults to same as source file
  var destFolders = []; // array of IDs of Drive folders to put converted file in; empty array = root folder
  var ss = convertExcel2Sheets(xlsBlob, xlsFilename, destFolders);
  Logger.log(ss.getId());
}
	/**
	* Convert Excel file to Sheets
	* @param {Blob} excelFile The Excel file blob data; Required
	* @param {String} filename File name on uploading drive; Required
	* @param {Array} arrParents Array of folder ids to put converted file in; Optional, will default to Drive root folder
	* @return {Spreadsheet} Converted Google Spreadsheet instance
	**/
	function convertExcel2Sheets(excelFile, filename, arrParents) {

	var parents = arrParents \|\| []; // check if optional arrParents argument was provided, default to empty array if not
	if ( !parents.isArray ) parents = []; // make sure parents is an array, reset to empty array if not

	// Parameters for Drive API Simple Upload request (see https://developers.google.com/drive/web/manage-uploads#simple)
	var uploadParams = {
	method:'post',
	contentType: 'application/vnd.ms-excel', // works for both .xls and .xlsx files
	contentLength: excelFile.getBytes().length,
	headers: {'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()},
	payload: excelFile.getBytes()
	};

	// Upload file to Drive root folder and convert to Sheets
	var uploadResponse = UrlFetchApp.fetch('https://www.googleapis.com/upload/drive/v2/files/?uploadType=media&convert=true', uploadParams);

	// Parse upload&convert response data (need this to be able to get id of converted sheet)
	var fileDataResponse = JSON.parse(uploadResponse.getContentText());

	// Create payload (body) data for updating converted file's name and parent folder(s)
	var payloadData = {
	title: filename,
	parents: []
	};
	if ( parents.length ) { // Add provided parent folder(s) id(s) to payloadData, if any
	for ( var i=0; i<parents.length; i++ ) {
	try {
	var folder = DriveApp.getFolderById(parents[i]); // check that this folder id exists in drive and user can write to it
	payloadData.parents.push({id: parents[i]});
	}
	catch(e){} // fail silently if no such folder id exists in Drive
	}
	}
	// Parameters for Drive API File Update request (see https://developers.google.com/drive/v2/reference/files/update)
	var updateParams = {
	method:'put',
	headers: {'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()},
	contentType: 'application/json',
	payload: JSON.stringify(payloadData)
	};

	// Update metadata (filename and parent folder(s)) of converted sheet
	UrlFetchApp.fetch('https://www.googleapis.com/drive/v2/files/'+fileDataResponse.id, updateParams);

	return SpreadsheetApp.openById(fileDataResponse.id);
	}

	/**
	* Sample use of convertExcel2Sheets() for testing
	**/
	function testConvertExcel2Sheets() {
	var xlsId = "0B9**************OFE"; // ID of Excel file to convert
	var xlsFile = DriveApp.getFileById(xlsId); // File instance of Excel file
	var xlsBlob = xlsFile.getBlob(); // Blob source of Excel file for conversion
	var xlsFilename = xlsFile.getName(); // File name to give to converted file; defaults to same as source file
	var destFolders = []; // array of IDs of Drive folders to put converted file in; empty array = root folder
	var ss = convertExcel2Sheets(xlsBlob, xlsFilename, destFolders);
	Logger.log(ss.getId());
	}