The IRS announced this hold-up with some very specific taxpayers in mind, stressing that everyone else should be just fine and can file early if they like.
In most cases, a file created in Office on one platform will appear just fine in the other, and no conversion process is needed because both use the same file formats.
Then, congratulating themselves on their bravery, they file inside to hear some fine gospel music and the Reverend Calvin Butts preaching against Mayor Rudolph Giuliani and all his works.