Opening TDMS files in Excel - column limit

Hi all,
I'm saving data I obtain using LabVIEW as a TDMS file and have downloaded the add-in to open the files in Excel:
http://zone.ni.com/devzone/cda/epd/p/id/2944
I'm using Excel 2007, which has a column limit of 16384 and a row limit of 1048576. Each of my datasets is 1024 rows values large and I have 10,000 datasets in total - well within either limit. However, the Excel importer will not open the file - pop-up errors occur and Excel opens multiple files. Has anyone encountered this before?
Miika

Have the same issue. As requested, I've attached a file with 300 dummy groups, each of which as 4 channels of dummy data.
When loaded into Excel, only the first 254 groups are shown:
Certified LabVIEW Architect
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Attachments:
abc.vi ‏3381 KB

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Tdms files in excel

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adamharden25 wrote: The issue is that when i open the file in excel each data point is saved in a different worksheet and there is so much data that it takes several minutes to open the file. Is there a way around this issue without redoing the tests?
That sounds like you wrote the file wrong. Each wooksheet should be a different Group. So if you change your group for each sample, you will get a different worksheet for each sample.
Can you post any code and/or a TDMS file for us to look at?
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Nilibddc dll: opening tdms files with corrupt index files

Hi there,
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Solved!
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Hi there,
thanks for the replies (and sorry for my late answer).
The code above is from a simple Visual C++ Project that i use to run some tests with the dll.
If i posted the question in the wrong topic please let me know - i found some other posts dealing with the dll so i thought i'm right here.
I attached a tdms and the corresponding "corrupt" tdms_index file.
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I want to use the dll as part of an application that runs as system service. It reads and writes information from/to existing tdms files. After the information is read the application moves the files. So, if the tdms_index file gets corrupt (by whatever) i have the problem, that the index file is locked as long as the service is running and the file can't be moved. I can't tell how often this happens (hopefully never) but if i can do something against it, i would like to integrate this precaution.
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Attachments:
samplefile.zip ‏3 KB

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The solution is to not make the TDMS files so large. Perhaps modify the code so it starts a new file every 1/2 hour or something. Could you post a screen shot of the part of the code that is doing the saving?
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Automatic Import of TDMS file into Excel

I was looking at the NI TDMS import plugin for Excel and it seems that the newest version of the plugin uses the COM API which could allow the import function to be used automatcially. There is a short info page about this here http://zone.ni.com/devzone/cda/tut/p/id/10207 but I'm new to Excel Macros and VBA so I'm not sure how to go from this tutorial to what I am wanting to do.
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After playing with things, I have worked out the solution to this and I am posting it for everyone in case it can be of some use. In order to use this solution to work out of the box, you will need the report generation toolkit. If you don't have that, you would need some other way of launching Excel from labview and running a macro. Hopefully someone who has the knowledge on how to do that will post that portion in this thread for those who don't have the toolkit
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Once you have copied/pasted this into the editor go to the menubar and hit File -> Export File and save the macro as a .BAS file
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Once all this is done, you can use the attached VI (Saved in LV 8.6) Simply supply the path to the BAS file and the TDMS file via the front panel controls and click run and the TDMS import will happen automatically.
Attachments:
Automatic TDMS Excel Import.vi ‏14 KB

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Opening TDMS files in Excel - column limit

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