Remove unwanted material So guys here is the problem. I add a material to a mesh, then I feel like I don't want that. How can I delete it? Even when I am deleting it, it's still there after reopening in the drop down list of materials. Now the thing is it says that it has 3 users although i can't see any. Please do help me I am attaching the file as well.

Link to file : https://gofile.io/?c=VltNPo
To find all the objects currently using a material.


If you have one of the objects selected,  ShiftL (Select Linked) > Material will select all visible objects using the same material as the one in the active slot. ( you may have to unhide objects to select them).
If you can't easily track down the object, you can switch the Outliner to Data API view (highlighted)..




.. select the material you're interested in, right-click, and, again, Select Linked.

To unlink a material from all objects ..
(Setting users to 0, even if you haven't found them)


Shift-click the 'Unlink' button in the materials panel ..


..Although it will continue to appear in the dropdown, the material will not be saved in the .blend file. Next time you open the file, the material will be gone.