What a 3D File Nobody Can Open Actually Costs

$8.4 billion a year just for engineers answering questions. The NIST figures on what a badly transmitted 3D file really costs manufacturers.

A 3D file the recipient cannot open looks like a harmless incident. You send a screenshot, you pick up the phone, you redo an export. Except that lost minute repeats thousands of times a day across an industrial supply chain, and someone has taken the trouble to put a number on it. Here is what the available public studies say, with their sources and their limits.

$8.4 billion a year, just to answer questions

This is the most striking figure in NIST report AMS 100-26, published in February 2020 and updated in February 2025. It measures what US discrete manufacturers spend on engineers answering questions and producing additional documentation because the model they sent does not stand on its own.

The same report adds $3.8 billion for machinists doing exactly the same thing downstream. Neither line item funds any design work: they pay to compensate for information that did not get through the first time.

Between $20.9 and $42.9 billion for incompatible formats

Still per NIST, that is the range attributed to the interoperability of differing data formats. The gap between the two bounds tells you how hard the measurement is: this is a diffuse cost, spread across thousands of daily exchanges that nobody accounts for.

The report also puts $5.2 billion on the continued reliance on 2D drawings rather than 3D models carrying their own annotations, and estimates $10.3 billion in savings reachable through seamless digital transmission of information.

In automotive, the largest cost is repairing files

An earlier NIST study, conducted by RTI International (Brunnermeier and Martin), put the cost of imperfect interoperability at a minimum of $1 billion per year for the US automotive supply chain alone. The authors state the estimate is conservative, as not all sources of cost could be quantified.

The breakdown matters more than the total. By far the largest component is neither software nor training: it is the resources devoted to repairing or re-entering files that are unusable downstream. In other words, most of that money pays people to rescue files that never arrive in a usable state.

43% of design review feedback is never addressed

CoLab surveyed 250 industry leaders at companies with more than 1,000 employees, all of which already run a PDM or PLM system. The finding: design review there happens mostly in spreadsheets, emails and screenshot markup tools, and 43% of the feedback raised is never tracked or addressed.

Read this source with the appropriate distance: CoLab sells a design review tool and therefore has an interest in the result. We cite it because the figure is precise, the scope is stated, and it matches what the NIST reports describe.

What these numbers mean for a small company

These are national US aggregates. They do not transpose directly to a fifteen-person engineering office. What they do establish is the nature of the cost: it does not sit in the software licence, it sits in qualified engineering time spent compensating for information that was poorly transmitted.

At small-company scale that cost takes a recognisable shape: the client who cannot open the part, the approval that waits a week, the version signed off that turned out to be the wrong one, the supplier who never answers the RFQ because they could not price it.

How to actually reduce it

• Send a link instead of a file: the recipient installs nothing and sees exactly what you see
• Make the model self-contained: dimensions and notes attached to the part, not in a separate email
• Pin the version: know which revision was seen and approved, and by whom
• Keep the feedback in one place so it does not scatter across email threads

If you are starting from a native CAD file, the simplest route is to export to STEP and share the result by link. The full workflow is in our guide to sharing a STEP file without CAD software.

Sources

• NIST AMS 100-26, The Model Based Enterprise, published 12 February 2020, updated 3 February 2025
• NIST and RTI International, Interoperability Cost Analysis of the U.S. Automotive Supply Chain, Brunnermeier and Martin
• CoLab Software, survey of 250 industry leaders at companies with 1,000+ employees