Input formats. Left: generic format, tab-delimited flat text file with (optional) fields "Total" and "Description", which may provide the application with information about total number of tags in a library and an alternative description (different from id string). The description becomes visible when user checks "Descr" box on the control panel. Right: data in GEO format. Highlighted are the fields, which are used for identification of the data-source and normalization of the tag counts. Also, it is possible to derive the short description from the field "Sample_title", which is analogous to the generic "Description" field.