When editing a heatmap the visible or hidden row or column labels can be exported as a list in a plain text file. This list can be used in the future to filter other heatmaps by label.
Go to File --> Export --> Export labels ...
When editing a heatmap the user can export the heatmap data contents in two ways:
Matrix: The user can select one attribute of the cells and then a matrix will be exported with the values for the selected attribute. Go to File --> Export --> Export matrix. The resulting data file will have the form of a Continuous data matrix (CDM)
Table: The user can select a set of attributes and then a table for all the heatmap visible cells (one row for cell) will be exported. Go to File --> Export --> Export table. The resulting data file will have the form of a Multi-value data matrix (TDM)