How do I Achieve Higher Resolution Timestamps When Viewing ASCII Files?

If you wish to view the timestamp data in high resolution, you will need to open the *.CSV file with Notepad or Wordpad.

If you use Microsoft Excel to open the file, Excel will round the timestamp data, preventing you from viewing it in high resolution. 

*.CSV is NOT an Excel file format. If you open the *.CSV file with Excel and save over the original file, you will destroy the high resolution waveform data.

Please see the attached CSV file for an example of high resolution timestamp data. The CSV file should look like the notepad_example.jpg if you opened the file correctly.

Related Products & Solutions

Data Acquisition (DAQ)

Yokogawa data acquisition systems give you the most flexibility and power to measure, display, store, and even actuate any number of physical or electrical phenomena.

High Speed Data Acquisition

  • Yokogawa high-speed data acquisition systems
  • Industry-leading isolation, bit resolution, sampling rate, and memory depth
  • Independent channel hardware and easy to use software


  • Digital oscilloscopes
  • High-speed sampling
  • Range of bandwidths for electronic device design and development
  • Advantages of oscilloscope and multi-channel data recorder

Oscilloscopes Application Software

  • Yokogawa's oscilloscope application software
  • View, export, analyze, and manage data 


  • Flexible, high-performance Yokogawa Test&Measurement ScopeCorder
  • Modular platform combines mixed signal oscilloscope and portable data acquisition recorder 
  • Captures high-speed transients and low-speed trends 

Precision Making