@Mike9241 wrote:
Business is for corporations, partnerships, trusts and estates. the .tax2019 is for an individual return that can't be opened with the business version.
Actually, as @mesquitebean wrote in his post, both the Business edition and personal editions of TurboTax use exactly the same extension (.taxXXXX where the Xes are for the tax year).
As a result, the only way to determine whether a particular extension applies to the Business edition or a personal edition is by the filename preceding the extension (assuming that name is not generic with respect to either edition).
