foreign file meaning in Chinese

数据库上部文件

Since i m dealing with a foreign file format , i want to eliminate the risk of encountering any control characters along the way
既然在处理外来文件格式，我想消除在中途遇到任何控制字符的风险。
The foreign file system port field must match the port number specified in the web server that acts as the ffs server , in the
Foreign file system ( ffs ) port字段必须与在作为ffs服务器的web服务器中指定的端口号相匹配在icsparm关键字的