PTC University edition installation issue/ invalid format or file

[RB_14491948]

I've got to step 4. Once I paste the product code I see the success message but within the license source it shows an error symbol and says invalid format or file and doesn't let me click next. creo 12.0

[VladimirN]

Same issue:

• "Student edition - License invalid file or format": https://community.ptc.com/t5/PTC-Education-Forum/Student-edition-License-invalid-file-or-format/td-p/655205 
• "Creo 8 student License invalid or format": https://community.ptc.com/t5/PTC-Education-Forum/Creo-8-student-License-invalid-or-format/td-p/758858