DwgText (a descendant to Excellink) exports selected drawing texts and their properties. Exported data can be modified in Excel (or in a text file) and then you can re-import it back into the Autodesk® AutoCAD® DWG drawing. You can use DwgText for creating BOMs, text schedules, or for batch editing of drawing texts and their visual properties.
DwgText supports Texts, MTexts, Block references (attributes, incl.dynamic), Multileaders, Tables, Attribute definitions and Document properties (including custom properties) plus all their visual properties.
See DwgText video
More information and ordering the full version - www.cadstudio.cz/dwgtext.