Hello enlightened ones.

An OLE2 file (e.g., the documents produced by Word, Excel, etc.) is a "hierarchical file system in a file" with its own "files" (called "streams"), "directories" (called "storages"), FAT, clusters, etc. The package OLE::Storage provides a very nice interface to the internal structures of the OLE2 files. For instance, you can enumerate the streams and storages, open them, read them, etc.

Each stream or storage has various properties - like name, size, date, time and so on. In particular, it has a property called CLSID.

In practice, the CLSID is a 16-byte value associated with each stream or storage. For a project of mine, I need to obtain the CLSID of the root storage. The problem is, I can't figure out how to obtain it with OLE::Storage. :-(

According to the documentation, the package provides the method clsid() - as in $clsid == $D->clsid($pps). But I can't figure out how to use it. :-(

I tried

print $Doc->clsid($pps) if ($Doc->is_root($pps));

but something bizarre gets printed - like

OLE::Storage::Property=HASH(0x1c5a718)

Any ideas how to use this package properly to obtain the CLSID?

In reply to How to get the CLSID with OLE::Storage? by bontchev

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