OPEN-I

Open a file from which data are read (input file).

The file is available across all nested procedure files. You can, for example, issue the READ command from more than one procedure file.

OPEN-I filenumber path

filenumber is a number between 1 and 4.

path is as follows:

{[[drive:]\directory\...\]filename[.extension]}

Open Test.ncp as input file 1:
```
OPEN-I 1 Test.ncp
```
Open the file defined by the variable #FILESPEC as input file 2:
```
OPEN-I 2 #FILESPEC
```

Copyscr.ncp

#RC (SUCCESS if OPEN-I was successful. FAILURE if OPEN-I was not successful.)