How to find List /Doc Library's guids

Navigate to the SharePoint list using the browser.

Copy the Url from the browser address bar into Notepad.

It will look something like: ......./?List=%7B26534EF9%2DAB3A%2D46E0%2DAE56%2DEFF168BE562F%7D

Delete everying before and including “List=”.

Change “%7B” to “{” and Chanage “%7D” to “}” Guids starts with { and ends with }

Change all “%2D” to “-“

Finally, {26534EF9-AB3A-46E0-AE56-EFF168BE562F}

Hope it helps!!!