What is the AC2 file format?
A file with the .AC2 extension is a file known as SPICE AC/frequency Domain Output. It belongs to the Misc Files category. This format is associated with National Instruments Corporation.
The reliable way to open a .AC2 file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .AC2 files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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