File Cannot Open

How to Fix an Empty 0 KB CSV Download in Excel

Elise Williams Oct 8, 2026 869 views

Question details

The user is unable to view their data because a downloaded CSV file appears as a 0 KB file or opens as entirely empty in Microsoft Excel.

How to Fix an Empty 0 KB CSV Download in Excel

Product: Microsoft Excel
Device & OS: not provided
Scenario: Downloading a CSV file from an external source and attempting to open it in Excel.
Observed behavior: The CSV file size shows as 0 KB or the file appears empty upon opening, typically caused by Excel's security settings or untrusted file locations.

Before you start

Verify that your internet connection is stable and the download process was not interrupted. Ensure you are downloading the CSV file from a secure and reliable source before modifying any security settings.

Solution 1Recommended

Add the Download Folder to Excel's Trusted Locations

By adding the folder where you save your CSV files to Excel's Trusted Locations, you can bypass the security restrictions that cause the file to appear empty.

Microsoft Excel uses the Trust Center to protect your computer from potentially malicious files downloaded from the internet. When a file is saved in an untrusted location like the default Downloads folder, Excel may block its contents.

Save the file to a new location

Download the CSV file again, but save it to a specific folder on your local drive (e.g., a new folder on your Desktop) instead of the default Downloads folder.

Access Excel Options

Open Microsoft Excel, click on the 'File' tab in the top-left corner, and select 'Options' at the bottom of the menu.

Open Trust Center Settings

In the Excel Options window, select 'Trust Center' from the left pane, then click the 'Trust Center Settings' button on the right.

Add a Trusted Location

Click on 'Trusted Locations' in the left menu, select 'Add new location', browse to the folder where you saved your CSV file, and click 'OK'.

Restart Excel

Close Excel completely, reopen the application, and try opening the CSV file again from the new trusted folder.

Add the Download Folder to Excel's Trusted Locations

Security Warning: Only add folders to your Trusted Locations if you are absolutely certain that the files saved there come from safe and verified sources.

Solution 2

Unblock the File in Windows Properties

Use this method if Windows itself has flagged the downloaded file as a security risk, preventing Excel from reading its contents.

Free Microsoft Office alternative

Open CSV Files Effortlessly with WPS Office

If Microsoft Excel continues to block your downloaded files, try WPS Office. It is a highly compatible, free, and lightweight alternative that easily opens and edits CSV formats without complex Trust Center configurations.

1. Download WPS Office: Visit the official WPS Office website to download and install the free software.
2. Select the CSV File: Locate your downloaded CSV file in File Explorer and right-click on it.
3. Open with WPS: Select 'Open with' from the menu and choose 'WPS Spreadsheets' to view your data instantly.

Fully compatible with Microsoft Excel formats, including .xlsx, .xls, and .csv.Lightweight architecture ensures fast loading even for large datasets.Familiar user interface means no steep learning curve.Bypasses complex Trust Center errors for safe, standard file formats.

Frequently Asked Questions

Why does my CSV file show as 0 KB when downloaded?

This usually happens when your web browser or Microsoft Excel's security settings interrupt the download process or block the file from being written properly because it originates from an unrecognized internet source.

Can I recover data from a 0 KB file?

No, a 0 KB file physically contains no data. You cannot recover information from it directly; you will need to redownload the file or ask the sender to provide the file again.

How do I turn off Protected View in Excel for downloaded files?

You can disable it by going to File > Options > Trust Center > Trust Center Settings > Protected View, and unchecking the options for files originating from the internet. Note that doing this will reduce your system's overall security.

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