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| Accessing External Files |
Writing Your Own I/O Access Methods
You can write your own I/O access method to replace the default SAS access method. This feature enables you to redirect external file I/O to a user-written program.
Note: The
user-written I/O access method applies only to external files, not to SAS
data sets. ![[cautionend]](../../../../common/63294/HTML/default/images/cautend.gif)
See your on-site SAS support personnel for additional information about writing I/O access methods.
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