# Issues in storing data from file sink in gnu radio

**URL:** <https://www.ruby-forum.com/t/issues-in-storing-data-from-file-sink-in-gnu-radio/263275>\
**Category:** GNU Radio\
**Created:** [September 21, 2022, 11:53am UTC](https://www.ruby-forum.com/t/issues-in-storing-data-from-file-sink-in-gnu-radio/263275 "2022-09-21T11:53:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![SiriusWT](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/54ee81/32.png) [@SiriusWT](https://www.ruby-forum.com/u/SiriusWT)\
**Post date:** [September 21, 2022, 11:53am UTC](https://www.ruby-forum.com/t/issues-in-storing-data-from-file-sink-in-gnu-radio/263275/1 "2022-09-21T11:53:12Z")

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Hi,  
i’m trying to store some fft data in a csv file format using the File Sink block. The OS is linux, and therefore i’m using the LibreOffice Calc version(6.4.7.2) in which i have selected the csv format to store the data in. But after running the flowgraph, the data gets stored as Unicode or ASCII/US characters in the file(These type of options are available for the character set) , instead of the expected float values. I do not understand if this data is just garbage values or actually makes sense, but i require float values for further processing. Here is a screenshot:

 ![Screenshot from 2022-09-19 16-43-00](https://www.ruby-forum.com/uploads/default/original/2X/1/150ab64aa99eba6e6428298a3a1fbac7d2ae8a5c.png)

What could be wrong? It would be great if someone could help out.