close a binary file
Close(file1, file2, ...)
file1, file2, ...
one or more names or file descriptors of open files to be closed
The Close(file1, file2, ...) command closes the specified file, which is assumed to have been opened either implicitly by a FileTools[Binary] function or by Open.
The Close function does not return anything.
Closing a file ensures that all data is written to disk.
When exiting Maple by the quit, done, or stop command, all open files are automatically closed.
Closing a file that is not open raises an error.
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