Excel in Windows does not recognize .vts as a supported workbook or text format. Common Excel-related extensions include .xlsx, .xls, .xlsm, .csv, .txt, etc., but .vts is not among the documented Excel or common Windows file types.
.vts is therefore almost certainly a proprietary or application-specific format created by the temperature-logging or lab instrument software, not by Excel. That is why it appears unreadable in Notepad, Word, and Excel.
To read the data:
- Identify the software or device that created the
.vts file (data logger, lab instrument, or vendor application).
- Open the file in that original application.
- From that application, export or save the data to a format Excel can open, such as:
- Excel workbook (
.xlsx)
- Excel 97–2003 workbook (
.xls)
- Comma-delimited (
.csv)
- Text (
.txt)
- Then open the exported file in Excel.
If the original application is unknown, use Windows to search for an app that can open the extension:
- In File Explorer, right-click the
.vts file.
- Select Open with > Search the Microsoft Store.
- If a compatible app exists in Microsoft Store, install it and use it to open/convert the file.
Excel itself cannot directly interpret an unknown binary format like .vts; it must first be converted to a supported format.
References: