List 5 filing system categories.
1. Alphabetical: Items in this system are arranged in alphabetical order. This method is commonly used when filing documents such as employee files or customer records.

2. Numerical: Items in this system are arranged by number. This approach is often used when assigning unique identification numbers to files or documents.

3. Chronological: Items in this system are organized by date. This method is useful for sorting documents such as bank statements, invoices or bills.

4. Geographical: Items in this system are sorted by location or region. This method is useful for organizing documents related to different branches or offices of a business or organization.

5. Categorical: Items in this system are arranged according to specific categories. This approach is useful when sorting documents by subject, product type, or department.
Complete the following task based on the instruction and optional input provided.### Instruction:
List 5 filing system categories.

### Output:
1. Alphabetical: Items in this system are arranged in alphabetical order. This method is commonly used when filing documents such as employee files or customer records.

2. Numerical: Items in this system are arranged by number. This approach is often used when assigning unique identification numbers to files or documents.

3. Chronological: Items in this system are organized by date. This method is useful for sorting documents such as bank statements, invoices or bills.

4. Geographical: Items in this system are sorted by location or region. This method is useful for organizing documents related to different branches or offices of a business or organization.

5. Categorical: Items in this system are arranged according to specific categories. This approach is useful when sorting documents by subject, product type, or department.