Create the wordle. Then hit Ctrl "Print Screen"(on your keyboard!)--the key probably reads PrtScn or something like that. Mine is in the upper right hand corner. Then, open powerpoint and Click Ctrl V. Use the crop tool to cut out anything you don't want to appear. Click save, and use the dropdown menu "save as type" and save it as a jpeg file. Then, on your wikipage, click "upload" (upload not embed) and upload the saved file like you would any other file you are adding to your page. It should place the wordle in as full size, but if you double click on it you can resize.