Hi,
I need to store some additional data along with a cell in a VSTO app. This could for example, include an internal ID; data that the user need not see or edit. I would want to save this data along with the worksheet as well.
What we've done so far is to use Comments with the required cells. Comments however can easily be messed up by the user. Is there a more "elegant" way to achieve this (hopefully without the need for protected worksheets)...