What is your problem? We discuss about attributes changing in a ready shape from RM, single column "ICON". In this case you only need the field calculator in QGIS
Load the file
right click on the file name >>>.open attribute table
workflow for all symbols in the column:
- STRG+C for copy icon name from the IMC library, paste into the field calculator
- Important: set the pasted name in single quotation marks (only if this is a string)
workflow for selected symbols in the column:
Close each workflow by clicking the pin buttom and save