Png2Vss batch converter by Dmitry Ivanov
Batch conversion utility to create single vss file from many graphics files (e.g png)
Visio Shape Extract by aduguid
This Add-In extracts the shape attributes' text from a Microsoft Visio file
Snippet for ShapeSheet by Surrogate
You can use this web-based table for get reference to a cell in a shape's ShapeSheet, including a shape on another page