A7S file - How do I open a .a7s file?
The table below provides useful information about the .a7s file extension. It answers questions such as:
- What is the .a7s file?
- What program do I need to open a .a7s file?
- How can the .a7s file be opened, edited or printed?
- How can I convert .a7s files to another format?
Table of Contents
- ✅ Anno 1800 Game Data
- 🔄 .a7s file converters
- 🚫 .a7s file related errors
We hope you find this page helpful and a valuable resource!
1 extension(s) and 0 alias(es) found in database
✅ Anno 1800 Game Data

The A7S file is an Anno 1800 Game Data. Anno 1800 is a city-building real-time strategy video game, developed by Blue Byte.
Other types of files may also use the .a7s file extension.
🚫 The .a7s file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .a7s file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows cannot open this file:
example.a7s
To open this file, Windows needs to know what program you want to use to open it...
If you don't know how to set the .a7s file association, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .a7s file extension, write to us!