It depends on if you're feeding into an HR/sourcing machine or actually talking with the decision makers. The former is just following a script and wants your

It depends on if you're feeding into an HR/sourcing machine or actually talking with the decision makers. The former is just following a script and wants your information in a specific format because that's what the automation demands. The latter is a person who you will either work with or under, they don't care. The latter is the preferable path in my opinion, and personally use the "send me your resume in a specific format" request as a reason to cease contact because of all it implies.