---
title: "Encrypt cloud spreadsheet with password in Cloud"
description: "Cloud APIs & SDKs for Protecting Microsoft Excel & OpenOffice Calc. Encrypt cloud spreadsheet with password by the Cells Cloud API. SDK support kinds of development languages. They include Android, C#, Go, Java, NodeJS, Perl, PHP, Python, Ruby, and swift."

---

# Encrypt cloud spreadsheet with password in Cloud


> Cloud APIs & SDKs for Protecting Microsoft Excel & OpenOffice Calc. Encrypt cloud spreadsheet with password by the Cells Cloud API. SDK support kinds of development languages. They include Android, C#, Go, Java, NodeJS, Perl, PHP, Python, Ruby, and swift.





















































.progLangContainer {
padding-right: calc(var(--bs-gutter-x)*.1);
padding-left: calc(var(--bs-gutter-x)*.1)
}
.progLangContainer {
padding-right: calc(var(--bs-gutter-x)*.1);
padding-left: calc(var(--bs-gutter-x)*.1);
margin: 5px;
margin-right: 20px;
}
.progLangPlace .progLangContainer .progLang {
color: #fff;
text-decoration: none;
height: 75px;
width: 75px;
text-align: center;
line-height: 65px;
border-radius: 100%;
font-size: 14px;
font-weight: 700;
border: 5px solid #e5e5e5;
box-shadow: 0 15px 8px -5px #666;
display: inline-block;
direction: ltr !important;
margin-bottom: 15px
}
.progLangPlace .progLangContainer .progLang:hover {
border: 7px solid #e5e5e5;
box-shadow: none
}
.progLangPlace .progLangContainer .bigFont {
font-size: 16px !important;
}
.progLangPlace .progLangContainer .selected {
border: 0 solid #e5e5e5;
box-shadow: 0 10px 8px -5px #666, inset 0 0 0 2px #063c72, inset 0 0 0 5px #fff;
cursor: initial !important;
pointer-events: none
}
.progLang:hover {
border: 7px solid #e5e5e5;
box-shadow: none
}
.progLang {
color: #fff;
text-decoration: none;
height: 75px;
width: 75px;
text-align: center;
line-height: 65px;
border-radius: 100%;
font-size: 14px;
font-weight: 700;
border: 5px solid #e5e5e5;
box-shadow: 0 15px 8px -5px #666;
display: inline-block;
direction: ltr !important;
margin-bottom: 15px
}
.pythonColor {
background: #4a59ce !important;
}
.javaColor {
background: #a499f2 !important;
}
.csColor {
background: #42dbb0 !important;
}
.cppColor {
background: #008594 !important;
}
.phpColor {
background: #ca75d7 !important;
}
.rubyColor {
background: #09e !important;
}
.nodeColor {
background: #519e8a !important;
}
.swiftColor {
background: #a2d270 !important;
}
.goColor {
background: #48d9ee !important;
}
.perlColor {
background: #5c9fea !important;
}
.curlColor {
background: #aeae61 !important;
}
.cellsp {
display: block;
color: #fff;
margin-block-start: 1em;
margin-block-end: 1em;
margin-inline-start: 0px;
margin-inline-end: 0px;
}
.cellsh2, .cellsh1 {
margin-top: 0 !important;
margin-bottom: .5rem !important;
font-weight: 500 !important;
line-height: 1.2 !important;
}
@media (max-width: 868px){
.pf-landing-page-com .header1.minify-header .cellsrow {
display: flex!important;
align-items: center!important;
flex-flow: unset!important;
}
.data-nosnippet{
display:none;
}
.pt-5, .py-5{
padding-top:0px !important;
}
.col-lg-12 .pt-5 .cellsh2{
font-size:18px !important;
margin-top:10px !important;
margin-bottom:10px !important;
}
}
# Swift API to protect cloud Microsoft Excel and OpenOffice Calc spreadsheet with password
## Swift library to protect cloud Microsoft Excel and OpenOffice Calc spreadsheet with password
Use Cells Protect REST API to protect cloud Microsoft Excel and OpenOffice Calc spreadsheet with password workflows in Swift. This professional solution protects cloud Microsoft Excel and OpenOffice Calc spreadsheet online with passwords using Swift.
[C#](/cells/net/protect/Encrypt-cloud-file-with-password/)
[Java](/cells/java/protect/Encrypt-cloud-file-with-password/)
[Python](/cells/python/protect/Encrypt-cloud-file-with-password/)
[PHP](/cells/php/protect/Encrypt-cloud-file-with-password/)
[Go](/cells/go/protect/Encrypt-cloud-file-with-password/)
[Node](/cells/nodejs/protect/Encrypt-cloud-file-with-password/)
[Ruby](/cells/ruby/protect/Encrypt-cloud-file-with-password/)
[Perl](/cells/perl/protect/Encrypt-cloud-file-with-password/)
.cells_bg_white {
}
@media (max-width: 868px){
.pf-landing-page-com .productfamilypage h2{
font-size:16px !important;
text-align:center !important;
}
.section-layout .heading-border{
font-size:20px !important;
}
}
@media (min-width:1200px){
.section-layout{
width:1170px;margin:0 auto;
line-height:28px;
}
}
## Protect cloud Microsoft Excel and OpenOffice Calc spreadsheet with password - Swift REST API
.panelContainer {
width: 100%;
}
.cells-cloud-input-group {
display: flex;
margin: 15px auto 0;
border: 1px solid #eee;
border-radius: 10px;
background-color: #ffffff;
align-items: center;
justify-content: space-between
}
.cells-cloud-input-group-main {
flex-grow: 1;
display: inline-block;
padding: 0 4px;
color: #333;
display: inline-block;
}
.cells-cloud-input-group-prepend {
display: inline-block;
height: 52px;
border-radius: 10px 0 0 10px;
padding: 0 20px;
background-color: #e3e3e8;
color: #333;
line-height: 50px
}
.cells-cloud-input-group-method {
float: left;
padding-right: 4px;
color: #ccc;
}
.cells-cloud-input-group-main {
display: inline-block
}
.cells-cloud-input-group-append {
float: right;
}
.cells-cloud-link-button {
display: inline-block;
border: 1px solid transparent;
border-left: 1px solid #e3e3e8;
border-radius: 10px 10px 10px 10px;
padding: 0 20px;
outline: none;
box-shadow: none;
background-color: #1a89d0;
text-align: center;
vertical-align: middle;
color: #151617;
line-height: 20px;
font-size: 1rem;
font-weight: 400;
}
.cells-api-text{
text-align: center;
vertical-align: middle;
color: #151617;
line-height: 50px;
font-size: 1rem;
margin: 0 auto;
width: fit-content;
font-weight: 400;
}
.cells-cloud-action-button {
display: inline-block;
width: 100%;
border: 1px solid transparent;
border-left: 1px solid #e3e3e8;
border-radius: 10px 10px 10px 10px;
padding: 0 20px;
outline: none;
box-shadow: none;
text-align: center;
vertical-align: middle;
line-height: 50px;
font-size: 1rem;
margin: 0 auto;
width: fit-content;
font-weight: 400;
}
@media (max-width: 868px){
.cells-cloud-input-group-prepend,.cells-cloud-input-group-method{
display:none !important;
}
.cells-cloud-input-group-main{
padding:0px !important;
}
.spanclass{
float: left;
width: 70%;
overflow: hidden;
}
}
API 
POST 
https://api.aspose.cloud/v3.0/cells/{name}/encryption
Try it 
Protecting a cloud spreadsheet with a password is a complex task. Protecting a cloud spreadsheet with password transitions is performed by our Swift SDK while maintaining the source spreadsheet's main structural and logical content. Our Swift library is a professional solution to protect cloud spreadsheets with a password online. This Cloud SDK gives Swift developers powerful functionality and perfect API.
### Swift code for encryption cloud spreadsheets
console.log("")
var codeconent = document.getElementById('code-convert');
codeconent.innerHTML = "";
const originalContent = "";
let dynamicReplacement = "";
function updateDynamicContent(value) {
dynamicReplacement = value;
updateDisplay();
}
function updateDisplay() {
const modifiedContent = originalContent.replace(/Book1\.xml/g, dynamicReplacement);
console.log(modifiedContent);
codeconent.innerHTML = modifiedContent;
}
.section-list{
}
.section-list ul{
display: flex;
flex-direction: row;
justify-content: space-between;
padding: 0px;
}
.section-list li{
list-style: none;
width: 27%;
line-height: 34px;
padding: 15px;
border-radius: 5px;
padding-top: 25px;
padding-bottom: 25px;
font-weight: bold;
word-break: break-all;
display: inline-block;
border: 1px dashed;
margin-bottom: 20px;
margin-right: 0px;
}
.section-list svg{
margin-top: -20px;
margin-left:1%;
margin-right:1%;
}
.heading-border{
font-size:28px !important;
width:100% !important;
padding-bottom:20px;
}
@media (min-width: 1200px){
.howtosection{
width: 1170px !important;
margin:0 auto !important;
}
.olstyle{
width: 1170px !important;
margin:0 auto !important;
}
}
@media (max-width: 868px){
.olstyle h2{
font-size:20px !important;
}
}
.olstyle ol{
list-style-type: none;
margin-right: 0;
margin-bottom: 0;
margin-left: 16px;
padding-top: 0;
padding-right: 0;
padding-bottom: 0;
padding-left: 30px;
}
.olstyle li{
margin-right: 0 !important;
line-height: 30px;
position: relative;
margin-bottom: 10px;
font-size: 18px;
}
.olstyle li a{
font-weight:bold;
text-decoration: underline !important;
}
.olstyle li::before{
position: absolute;
left: -30px;
top: 5px;
display: block;
background: #006bb0;
width: 20px;
height: 20px;
color: #fff;
text-align: center;
line-height: 20px;
font-size: 12px;
font-weight: 700;
border-radius: 10px;
}
.olstyle li:nth-child(1):before {
content: "1"
}
.olstyle li:nth-child(2):before {
content: "2"
}
.olstyle li:nth-child(3):before {
content: "3"
}
.olstyle li:nth-child(4):before {
content: "4"
}
.olstyle li:nth-child(5):before {
content: "5"
}
.olstyle li:nth-child(6):before {
content: "6"
}
.olstyle li:nth-child(7):before {
content: "7"
}
## How to use Swift API to encrypt 
- Create an account at [Dashboard](https://dashboard.aspose.cloud/) to get free API quota & authorization details
- Initialize CellsApi with Client Id, Client Secret, Base URL & API version
- Call cellsWorkbookPostEncryptDocument method to get the resultant stream
.section-list{
}
.section-list ul{
display: flex;
flex-direction: row;
justify-content: space-between;
padding: 0px;
}
.section-list li{
list-style: none;
width: 27%;
line-height: 34px;
padding: 15px;
border-radius: 5px;
padding-top: 25px;
padding-bottom: 25px;
font-weight: bold;
word-break: break-all;
display: inline-block;
border: 1px dashed;
margin-bottom: 20px;
margin-right: 0px;
}
.section-list svg{
margin-top: -20px;
margin-left:1%;
margin-right:1%;
}
.heading-border{
font-size:28px !important;
width:100% !important;
padding-bottom:20px;
}
@media (min-width: 1200px){
.howtosection{
width: 1170px !important;
margin:0 auto !important;
}
.olstyle{
width: 1170px !important;
margin:0 auto !important;
}
}
@media (max-width: 868px){
.olstyle h2{
font-size:20px !important;
}
}
.olstyle ol{
list-style-type: none;
margin-right: 0;
margin-bottom: 0;
margin-left: 16px;
padding-top: 0;
padding-right: 0;
padding-bottom: 0;
padding-left: 30px;
}
.olstyle li{
margin-right: 0 !important;
line-height: 30px;
position: relative;
margin-bottom: 10px;
font-size: 18px;
}
.olstyle li a{
font-weight:bold;
text-decoration: underline !important;
}
.olstyle li::before{
position: absolute;
left: -30px;
top: 5px;
display: block;
background: #006bb0;
width: 20px;
height: 20px;
color: #fff;
text-align: center;
line-height: 20px;
font-size: 12px;
font-weight: 700;
border-radius: 10px;
}
.olstyle li:nth-child(1):before {
content: "1"
}
.olstyle li:nth-child(2):before {
content: "2"
}
.olstyle li:nth-child(3):before {
content: "3"
}
.olstyle li:nth-child(4):before {
content: "4"
}
.olstyle li:nth-child(5):before {
content: "5"
}
.olstyle li:nth-child(6):before {
content: "6"
}
.olstyle li:nth-child(7):before {
content: "7"
}
## System Requirements
- macOS Monterey 12.4
- Swift 4.2