What are IST files?

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IST files are specialized files that are commonly used in the context of banking and financial systems to store transaction or operation data. However, the term "IST" can have different meanings depending on the context. Let's look at the main uses of IST files:

1. IST files in banks and processing centers​

In the banking sector, IST files are often used to transfer data between banks, processing centers and payment systems. These files may contain:

• Transaction information (e.g. purchases, cash withdrawals, transfers).
• Operation statuses.
• Data for settlements between banks.

Example:

• In some countries, IST files are used to exchange information between banks and national payment systems (for example, for interbank settlements).

The format of such files is usually strictly regulated to ensure compatibility between different systems.

2. IST files in payment terminals​

In the context of POS terminals (devices for accepting card payments), IST files can be used to store transaction data locally. This is especially important for stand-alone terminals that are temporarily disconnected from a bank or processing center.

Example:

• When the terminal is offline, it stores transaction data in an IST file and then sends it to the bank when the connection is restored.

3. IST as a format for data import/export​

In some software systems, IST files can be used to import or export data. For example:

• Financial programs can use IST files to load data about customers, transactions, or accounts.
• Database programs may support the IST format to facilitate integration with other systems.

4. Other possible meanings of IST​

If you encounter IST files in another context, they may refer to the following:

• Installation files: In rare cases, IST may refer to an installation file for a particular software program.
• Technical files: Some systems use IST files to store configurations or logs.
• Specialized Formats: IST may be a format used by a specific company or industry.

How to open IST file?​

If you need to work with an IST file, it is important to consider its origin:

1. Identify the source of the file:
   • If the file is received from a banking system, it may be intended for processing only in specialized software.
   • If the file is used in a POS terminal, please refer to the device documentation.
2. Try opening a text editor:
   • Many IST files are delimited text files (such as CSV).
   • Open the file in Notepad++ or Microsoft Excel to check its contents.
3. Use specialized software:
   • If the file is intended for a banking system, you may need software that works with this format (for example, processing software).

Conclusion​

IST files are most often associated with banking and financial systems, where they are used to store and transmit transaction data. If you encounter one, it is important to determine its context and purpose. If the file is from an official source, it is best to consult the documentation or technical support for more information.

If you have a specific example of an IST file being used, please provide details and I will help you dig deeper!