Welcome to the Community, @jennie1234.

Let me provide some insights about importing IIF file in QuickBooks Desktop (QBDT) and help you from there.

Importing transactions in QBDT depends on the number of list entries you've imported. When you import individual journal entries, QuickBooks will take it individually. However, if you enter all the transactions in one journal entry, and import it in QuickBooks, it'll show as one journal entry.

You can read these articles to learn more about IIF import and export limitations: 

• Export, import, and edit IIF files.
• Maximum number of list entries (list limits and custom fields).

Please let me know if you need clarification about this, or there's anything else I can do for you. I'll be standing by for your response. Have a great day and keep safe.