@Sumit Singh  

If you're looking for a simple way to download multiple Salesforce Files at once, you can also check out Mass File Download (MFD). It allows you to download multiple files/attachments from Salesforce records in bulk instead of downloading them individually.

• Website: https://satrangtech.com/salesforce-mass-file-download/
• You can also find it on the Salesforce AppExchange: https://appexchange.salesforce.com/