The HEADERMOD Command:
- The HEADERMOD command is used to manipulate Midas (Blue) file headers.
- Some of the more common tags are:
- For example:
```
nM> waveform temp
nM> headermod temp type=2000 fs=1024
```
  Changes a type 1000 into a type 2000 file with a frame size of 1024.
- Additional switches in HEADERMOD allow you to view, create, attach or detach headers.
  - Detached headers are used to store the Midas data (.det) and header (.tmp) in separate files.
- See the HEADERMOD explain file for more information.

X-Midas Users Take Note:

X-Midas Users Take Note:
Some of the tags for the NeXtMidas `HEADERMOD` command do not match those of the X-Midas `HEADERMOD` command. For instance, the `F=` tag in X-Midas is `FORM=` in NeXtMidas. NeXtMidas makes use of a Java feature called reflection to find the appropriate method when a tag is given. In the case of `FORM=` it will find the `DataFile.setFormat()` method and call it. By using reflection NeXtMidas is able to eliminate any additional wrapper that would otherwise be present in the `HEADERMOD` command.

Some of the tags for the NeXtMidas HEADERMOD command do not match those of the X-Midas HEADERMOD command. For instance, the F= tag in X-Midas is FORM= in NeXtMidas. NeXtMidas makes use of a Java feature called reflection to find the appropriate method when a tag is given. In the case of FORM= it will find the DataFile.setFormat() method and call it. By using reflection NeXtMidas is able to eliminate any additional wrapper that would otherwise be present in the HEADERMOD command.