MENSAJE: El archivo "Prints Encargar.ai" es de un formato desconocido y no se puede abrir

Hello @Ana27946974q54n,

Sorry to hear about this experience. I hope the suggestions shared by Myra helped resolve the problem. If not, kindly share a sample file here or via DM (https://community.adobe.com/t5/illustrator-discussions/share-your-files-in-6-simple-steps/td-p/12967531), so we can check it on our end.

Looking forward to your response.

Thanks,

Anubhav

There's a similar but older thread with a solution you could try:

• the file is an unknown format and cannot be opened (.ai file)