Hi, can I export all the user's photo only? In addition, is any way to connect API with smart sheet?
yes you can connect smartsheet API by generating access token from your personal settings. You can do lots of things such as automating backups including attachments, carry over data from worksheet to worksheet within smartsheet and even you can use files from your database or other tools like dropbox. Smartsheet API is well organized and easy to integrate.
Yes, it is possible to get a user profile image. You can use the request to get image urls to receive a url to download the image from. This request is detailed in our API docs here.
You can also review the section on Downloading Cell Images as that also applies to getting profile images.
If you are interested in working with the Smartsheet API I would suggest checking out the Getting Started section in the docs: