PCB Builder Gerber 274X file extension types

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1

I’m using Mentor Graphics Xpedition to generate output artwork in Gerber 274X format. The only file extension produced is .gbr.
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But .gbr is not listed as an acceptable extension (incorrectly referred to as a format) on the PCB Builder page.
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Is .gbr an acceptable file extension for my 274X Gerber format?

2

I suspect you just need to rename your files so that the extensions match the layers shown in the file formats list.

Silk Bot.gbr → MyPCB.gbo
Silk Top.gbr → MyPCB.gto
SM Bot.gbr → MyPCB.gbs
SM Top.gbr → MyPCB.gts

Usually when the g(b/t)? file extension pattern is used for designating Gerber layers, the signal layers are gto & gbo but I don’t see them listed.