I have had no luck figuring out how to insert an image (a gif in this case) created in perl with GD directly into an excel workbook, without first saving the image to a file. Is this possible using win32::OLE or one of the perl spreadsheet modules, or is there another trick I'm missing?
What I've tried: searching google, stackoverflow, perlmonks
modules: - spreadsheet::writeexcel - excel::writer::xlsx
win32::OLE - Pictures->Insert - Shapes->AddPicture
All require a file as input; there was ONE (rejected) bug/patch to spreadsheet::writeexcel to allow inline images, but it didn't quite work and I'm disinclined to use non-baseline modules... any ideas?