As you are creating and other files but software must have ability to save file as .ico Photoshop can not save files in this format.
An icon is a logo for a program
The most common way to create an icon is to create your own .ico file. These files are typically 16x16 pixels in size and can be created easily from some existing graphics by certain websites found online that can be searched by typing "creating your own favorite icon".
"ico" is a common extension for an icon. An icon is the image you see in a file browser or on your desktop. That icon will represent a file.
An icon.
Find the file or program you want to make into an icon (or shortcut). Right click and select "Create Shortcut" (depending on your operating system, it might be "Create Shortcut to Desktop" or similar). If this does not work, simply drag the icon over to your background.
.ico
You can't turn a folder into a file. You can, however, make a folder look like a file by changing its icon (for instance, to the icon for a text document or Excel spreadsheet). You could also delete or move a folder and make a file with the same name, which might make it look like it had been turned into a file.
The Create a Sim icon is located in the bottom left of the neighborhood menu.
first make your icon in paint then save as an ordinary file (.jpg) then use the online tool , favico maker and upload your image. The online tool will make it an icon file then it gives you the option to download it
An computer icon is collection of programs or futures that displays in a single file that display as icon
A widget is a screen graphic or icon. A file widget, also known as a shortcut, is an icon containing a link to a file. Clicking it causes the file to open.
shortcut