Echelon NodeBuilder Resource Editor - Manual (Page 76)

6. Click Convert.
You may choose to convert and purge a resource file set at the same time. In this case,
the source file will be purged, and then converted. You may also choose to convert a
resource file without changing the format version (e.g., converting a type file from
version 4 to version 4). Such a conversion enables some housekeeping work and error-
checking to be performed within the resource file, and may result in a resource file of a
slightly different size.
When converting a resource file set to an older format, advanced features and related
data will be removed from the set. This includes previously purged resources; although
purging of deleted resources actually removes the resource from the file set, a non-
contiguous sequence of resource indices results. Only the more recent resource file
formats support this case; for older file formats, the gaps in the sequence of consecutive
indices must be filled. The Resource Converter does this by creating “dummy” resources
as needed, and marking them as deleted at the same time. Thus, file format conversion
might seem to “unpurge” previously purged resources, however, this is not the case. The
resources that are created in the empty indices during the conversion will be of a simple
type, and will not have any properties of the original, purged, resource.
68 Creating and Modifying Resources