Read multiple files in folder and append data to one file

[Yogesh9ic]

Thanks for this, Can you please send me file made in version 8.2

[Yogesh9ic]

Hi There,

I am also trying to get some kind of progress bar in my front panel. My program has six steps and i used "flat sequence structure" for each step. I am wondering is there a way to use slide on front panel and increment its value after each step. Also is there a way to use string indicator on front and change input when data progress to next flat sequence structure. I tried using progress bar from NI website but it works with for loop only and i do not have for loop in my program.

Thanks in advance

Yogesh 

[Baji]

Find the Vis in 8.0. Start a new thread and send the vi which u done.

[a01lida]

 Hi,

 I used the vi that you provided but it copied the same files twice

 Can I know where did I do wrong? or did I misunderstood something?

 Thanks

[Baji]

I tested its not doing as you mentioned.Check the attachment.

Note: Dont keep the VI in the same folder, where the files need to concatenated.

[a01lida]

hrmm.. this is weird. I still get abcdefabcdef 

 I shouldn't be getting that, but only abcdef, right?

[Baji]

I am getting abcdef only. After twice running the code only you will get abcdefabcdef.

[Stock25]

Hello,

I know it has been a while since this topic has been discussed, but I have a similar problem. I have several thousand .txt files which I need to analyze (RMS and mean power frequency, specifically) and write to a single .txt file. I would like to be able to perform a batch read, where the program reads all of the files in the folder, and appends them to a single spreadsheet. It would save me a lot of time if I didn't have to continuously read from spreadsheet and write to spreadsheet over and over. I have attached the VIs I am using. I would really appreciate it if anybody could help me out...spent a lot of time trying to figure this out.

[RavensFan]

I don't understand your comment how "it would save me a lot of time if I didn't have to continuously read from spreadsheet and write to spreadsheet over and over."

In what way would it take a lot of time?  If you feed a list of filenames into a For Loop as an Array of Paths, LabVIEW does all the work for you.  It probably won't take any longer than reading one large file.

[wond3rboy]

Hi this is an example that does the same. It reads the text files and saves them to a Spreadsheet file. Its as simple as you can get. The file is saved in the folder containing the VI. 

After reading Ravens reply: Yeah come to think of it, LabVIEW doesnt care if you give a 100 files to read or one big file. It should have any problems reading it.

PS: Thanks to Baji since i used his uploaded zip file.