.CSV file saved as a .TLG, which won't open

Did you use QB Desktop UK version?

I understand that you’re in the process of migrating from QuickBooks Desktop (QBDT) and have encountered some challenges. I’m here to provide clarification and guide you through the necessary steps to resolve this issue.

QuickBooks maintains a record of changes to your company file since your last backup. This information is stored in a file with a .TLG extension. This is a default file name or location when you restore your data. Conversely, CSV files are simple text files containing tabular data, with each field separated by a comma.

If you’re having trouble opening the .TLG file, I recommend re-exporting the report, provided you still have an active QBDT license. Here’s how to do it:

1. Navigate to the Reports menu and select Reports Centre.
2. Find and open any report.
3. On the toolbar, select Excel. Optionally, you can  Print or Email to save the report as a PDF.
4. Choose Create New Worksheet for a new workbook, or Update Existing Worksheet to modify an existing one.
5. Optionally, select Advanced for specific formatting.
6. When you’re ready to export, select OK. To open the report in Excel, you can also select Export.

However, if you no longer have access to your company file, I suggest reaching out to our QuickBooks Data Support team. They can assist you in recovering your company file.

Additionally, I've added this helpful resource that you can open to have a detailed look at the taxes you owe and the reason you owe them: Check how much VAT you owe in QuickBooks Online

Keep us posted if you have questions about files in QuickBooks Online, you can comment below, and we'll respond to you as soon as possible.

We started a fresh set of accounts with Quickbooks online for our new tax year, while still running the PC version for the previous periods. When this was no longer supported, we uploaded our PC files to Quickbooks, separately from the current period, then log on access them by opening a session. limited functionality, but the system previously did create .CSV files when it said it was going to.

Thanks for your reply. Yes, that's how I used to be able to access reports - but now the system says that it has saved a .CSV file, although the actual file is a .TLG.

I did contact Quickbooks support, they had no idea how to fix their glitch and suggested that I posted a comment here. seems like an abdication of their responsibilities.

@PaulHurst 

Which QB Desktop year version did you use?