Question: * some jfg file extension formats can be opened in binary format only.
Answer: --> * Some JFG file extension formats can be opened in binary format only.

Question: the houses seem to be fortified. within windows are wider, as the windows of the castles, para protegerse del exterior.
Answer: --> The houses seem to be fortified. Within windows are wider, as the windows of the castles, para protegerse del exterior.

Question: 4. if you don't want mitered corners, just leave the folds as they are and iron them down flat.
Answer:
--> 4. If you don't want mitered corners, just leave the folds as they are and iron them down flat.