How to add an data in an existing file

[Wilmer_S]

Hi, I have the following problem:

I  am implementing a data logger using the RS232 port and Labview, I have not problems with data capture my problem occurs when I store the data in a file, I need that every time the data is registered this data must be updated in the file

How  do I can do this?

[Omar_II]

Use the "Set File Position" function to set the file pointer at the end of the file which is where the next write will write the data.

[Cory_K]

If the data file is some type of delimited text (tab-delimeted text, csv, etc) you can just use the Write to Spreadsheet File.

Just make sure you wire True to "Append to File?"