Since they’re just plain text files, an file can open with any text editor too, like Windows Notepad.
See our Best Free Text Editors list for download links to some more advanced text editors that work with Windows and macOS.
Microsoft SQL Server should also be able to open files, as might other programs that deal with large sets of data.
If you find that an application on your PC does try to open the file but it’s the wrong application or if you would rather have another installed program open files, see our How to Change the Default Program for a Specific File Extension guide for making that change in Windows.
How to Convert an ATOMSVC File
I don’t know of any special tool or converter that can save an ATOMSVC file to another format.
However, since they’re used to pull information from some other data source, if you open one in Excel so as to import that data, it’s possible that you may then be able to save the Excel document to another spreadsheet or text format. Excel can save to formats like CSV and XLSX.
I haven’t tried myself to confirm this, but using this method wouldn’t really be converting the ATOMSVC file itself into another format, just the data that it pulled down into Excel.
However, you can use a text editor to convert the ATOMSVC file to another text-based format like HTML or TXT since the ATOMSVC file itself contains only text.
Note: Most file formats that are more widely used, like MP3 and PNG, can be converted using a free file converter. To my knowledge, there just aren’t any that support this format.
Still Can’t Open Your File?
If your file doesn’t open with the programs mentioned above, double-check the file extension to make sure you’re not misreading it. It can be easy to confuse file formats with one another since some file extensions look alike.
For example, SVC files might look related to ATOMSVC files since they share the same last three file extension letters, but those are actually WCF Web Service files that open with Visual Studio.
The same idea is true for other file extensions that might look like they resemble the Atom Service Document format, like SCV.
If you don’t really have an ATOMSVC file, research the real file extension to learn which programs can open or convert that specific file.