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Working with File Manager
Viewing and changing data sets
To view data stored in a supported data set, use the View Utility or the Edit Utility.
Editing techniques
Editing large files

Working with File Manager
- File Manager overview
- Getting started with File Manager
- Viewing and changing data sets
  To view data stored in a supported data set, use the View Utility or the Edit Utility.
- Creating and editing templates
  For many tasks performed with File Manager, you can manipulate your view of a data set by applying a template.
- Working with the Template List
  Display a list of templates and perform actions on them.
- Filtering records with templates
- Managing data sets
- Using File Manager utilities
- Tape Specific Functions
- Disk/VSAM Data Functions
- OAM Functions
- Using UNIX™ System Services and the Hierarchical File System
- Introduction to programming with File Manager functions
- Enhancing File Manager processing
  You can enhance normal processing of a number of File Manager tasks by supplying a procedure that runs in conjunction with the File Manager process.
- Redefines criteria
  Redefines criteria can be specified for a field with a REDEFINES clause, or a field that is the target of a REDEFINES clause.
- Enhanced ISPF: Reference List, Search, Change, and PDSE Workbench
  File Manager provides several enhancements to the basic facilities that are available in an ISPF session: Enhanced Reference List, Enhanced Search, Enhanced Change, and PDSE Workbench.
- File Manager Service Provider for z/OS® Connect Enterprise Edition
  File Manager Service Provider for IBM® z/OS® Connect Enterprise Edition enables client applications to access IBM Z data sources using z/OS Connect.
- Function and panel reference lists

Editing large files

Using Auxiliary edit or In-place edit, you can edit large files, regardless of their size, without the need to first break them up into smaller subsets.

If you do not select Inplace edit on the editor entry panel and perform either of these actions:

You attempt to edit a QSAM data set or a VSAM ESDS or RRDS data set defined with the REUSE attribute but it is too large to fit into available memory,
You attempt to edit a QSAM data set or a VSAM ESDS or RRDS data set defined with the REUSE attribute, and you specify a start position or record limit

File Manager uses an auxiliary file in order to fulfill your request and issues progress messages periodically during the pre and post edit copy process.