Did your computer fail to open an AT file? We explain what they are used for and recommend software that we know can open or otherwise handle your .AT files.
What is an AT file?
The AT file extension indicates to your device which app can open the file. However, different programs may use the AT file type for different types of data.
While we do not yet describe the AT file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about AT files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
Various AT file openers, viewers, etc.
These apps are known to open certain types of AT files. Remember, different programs may use AT files for different purposes, so you may need to try out a few of them to be able to open your specific file.
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