Qiime 2 Biom File format


I have been trying to import a BIOM file output from QIIME 2 into MEGAN and had no luck. I understand the OTU IDs are in the first column (when converted to TSV) and they can be in the following format,


It is also my understanding that the BIOM file from QIIME 1 had the Greengenes IDs in the first column. So can MEGAN read Greengenes IDs to interpret taxonomy and do I also need to format my ouput from QIIME2 to have greengenes IDs just like Qiime1 ?