What's the S1 File?

Written by:   |   Amended: November 26, 2018

Microsoft Silver

S1 File Summary

Our most recent information indicates that S1 files are associated with only a single known file type, the Free Pascal File format, and can be viewed with the Free Pascal software package (developed by Open Source). S1 files are categorized ordinarily as Uncommon Files.

File Extension S1 files have been identified on both desktop and mobile devices. They are fully or partially supported by Windows, Mac, and Linux. These files have a Popularity Rating of "Low", meaning they are not very commonly observed on your average hard disk.

To learn more about S1 files and their associated software applications, please see the information below. Plus, we provide a basic troubleshooting guide to solve problems with opening S1 files.

Low
Popular
1851
Standing

/ 11690

Active

State

26

November

2018

Page Last Updated

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Types of S1 Files


Chief S1 Description

.S1
File ID:.s1
Category:Free Pascal File

The S1 file is mainly linked with Free Pascal, a 32 bit or 64 bit pascal compiler developed by FPC Development Team. It's designed for various types of processors.

Organization: Open Source
Kind:Uncommon Files
Key: HKEY_CLASSES_ROOT\.s1

Software Programs That Open The Free Pascal File:


Free Pascal by Open Source

Windows
Mac
Linux
OS/2
FreeBSD
NetBSD
SunOS
BeOS

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S1 Popularity


Leading Mobiles

Samsung (28.86%)
Apple (21.83%)
Huawei (9.25%)
Xiaomi (6.74%)
LG (3.11%)


S1 Troubleshooting


Typical S1 Opening Challenges

Free Pascal Isn't There

When trying to open your S1 file, you get the error "Can't Open S1 File Type". If so, it typically means that you don't have Free Pascal installed for %%os%%. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.


Tip: When another S1 application is installed, you can choose to open it by selecting "Show Apps" and using that program.


Free Pascal is Out-of-Date

In some cases, you might have a newer (or older) version of a Free Pascal File file that is unsupported by your installed application version. If you do not have the proper version Free Pascal (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.


Tip: If you right-click on your S1 file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.


Conclusion: The majority of S1 file opening issues are due to not having the correct Free Pascal version installed.


Other S1 File Issues

In the majority of cases, installing the right version of Free Pascal will resolve your issue. There can be external issues inside of %%os%% that are causing these errors when opening S1s. These other problems include (listed in order from most to least common):

  • S1 file references in the Windows Registry are broken
  • Accidental deletion of the description of the S1 file in the Windows registry
  • Incomplete or bad installation of a software application associated with the S1 format
  • Something has caused file corruption of your S1
  • Your S1 is infected with malware
  • Drivers associated with S1 software need to be updated
  • Your PC doesn’t have enough available resources to open the Free Pascal File file

Quiz: How many characters long can a filename be?









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