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How to Make TSV Files Open in Excel Instead of Notepad
Question details
The user needs to configure Windows settings so that TSV files automatically launch in Microsoft Excel when double-clicked, rather than opening in the default text editor.
- Product
- Microsoft Excel
- Device & OS
- Windows
- Scenario
- Opening and editing tab-separated value (.tsv) data sets in a structured spreadsheet format.
- Observed behavior
- TSV files are currently launching in Notepad by default, which displays the raw text instead of formatting the data into spreadsheet columns.
Ensure that Microsoft Excel is fully installed on your Windows computer and that you have administrative privileges to modify default app settings.
Change the Default App Using the 'Open with' Menu
The fastest way to permanently associate TSV files with Excel is through the right-click context menu directly on the file.
This method changes the Windows registry file association for the specific file type you select. If Excel is not immediately visible in the list of applications, you may need to browse your computer for the Excel executable file.
Locate any .tsv file on your computer, right-click on it, and hover over 'Open with' in the context menu.
Select 'Choose another app' from the submenu to open the app selection dialog box.
Scroll through the list and click on 'Excel'. If Excel is missing, click 'More apps' or 'Look for another app on this PC' and navigate to 'C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE'.
Check the box at the bottom that says 'Always use this app to open .tsv files' (or 'Always' in Windows 11), then click OK.
Modify Default File Associations in Windows Settings
If changing the default program via the right-click menu proves temporary or fails to stick, configuring the default apps in Windows Settings forces the change at the system level.
Manually Import TSV Data Using Excel's Data Tab
If file associations are restricted by your IT administrator, you can bypass the default app launch completely by importing the TSV directly from within Excel.
Easily View and Edit TSV Files with WPS Office
If you are experiencing issues with Microsoft Office file associations, or simply need a lightweight and free spreadsheet tool, WPS Office perfectly handles TSV, CSV, and XLSX formats with an interface that feels instantly familiar.
- 1. Install WPS Office: Download and install the free WPS Office suite on your Windows PC.
- 2. Change Default App: Right-click your TSV file, select 'Open with' > 'Choose another app', and select 'WPS Spreadsheets'.
- 3. Work Seamlessly: Ensure 'Always use this app' is checked to open all TSV data instantly into perfectly formatted columns.
Frequently Asked Questions
Why do TSV files open in Notepad by default?
TSV (Tab-Separated Values) files are essentially plain text files where data points are separated by tab characters. Because they are plain text, the Windows operating system associates them with its default text editor, Notepad, straight out of the box.
Why won't my Windows file association changes stay applied?
Sometimes, file association changes made via the right-click menu are overridden by Windows updates or strict user permission settings. If the setting resets, try changing the association through Windows Settings > Apps > Default apps instead, or contact your system administrator if you are on a work computer.
What is the difference between a TSV file and a CSV file?
Both are text files used to store tabular data. A CSV (Comma-Separated Values) file uses commas to separate data fields, whereas a TSV file uses tab characters. Both formats can be easily imported into spreadsheet programs like Microsoft Excel or WPS Spreadsheets.
How do I fix missing leading zeros when opening a TSV in Excel?
When double-clicking a TSV file, Excel automatically attempts to detect data types and may remove leading zeros from numbers. To prevent this, open Excel first, use the 'Data > From Text/CSV' import tool, and manually change the specific column's data type to 'Text' before loading the data.
