How to import ISOSHEET properties from a Text File to an Active DGN File

Hello,

I would like to import properties (ie. titleblock information) from old PDF isometrics into OPM.  Is there a way to do this?  I'm currently using SS5 OPM but would also like to have this information for SS6 OPM.  Currently, we can extract the properties from the old isometric into excel.  Ideally I would like to upload directly from excel but from the previous post on uploading pipeline properties, it seems that a text document is the only way to import into the DGN file.

Thank you.