# Interpolate or resample while exporting data

Select 'Batch Processing' from the Analysis window.

1. In the 'Export data' window, click the 'General' tab

* Enable 'Convert files.'
* Select the desired format for conversion, e.g., CSV
* Enable 'Convert each input file to separate output file.'

<div align="left"><figure><img src="/files/i9yw0xN1Ud2yX65G0GPs" alt="" width="563"><figcaption></figcaption></figure></div>

2. In the 'Input files' tab

* Click on the ‘Add file(s) for conversion’ icon
* Select the desired IVD file
* Click 'Open'

<div align="left"><figure><img src="/files/2KXVfYkRYufyLzxBKhZf" alt="" width="563"><figcaption></figcaption></figure></div>

3. In the Converting Files tab

* Enable 'Change each item sampling rate using.'
  * **Interpolation**: a mathematical method to calculate value at a specific time stamp, which lays on the line connecting previous and next samples.
  * **Resampling**: specifies using the last known value, i.e., the value of the channel does not change until the next sample occurs.
* Enable other check boxes as desired.
  * Used fix rate when processing samples at (time in msec)
    * Align the beginning of the file time range by creating additional samples from 0ms
    * Align the ending of the file time range by creating additional samples after the last ones.

Or

* Combine sampling rates from all items

***\*Resampling is a Licensed feature, get in touch with our*** [***technical support team***](https://www.influxtechnology.com/supportcontact) ***for more details**.*

<div align="left"><figure><img src="/files/fQNWf4SDLpw7r2yBIHp8" alt="" width="563"><figcaption></figcaption></figure></div>

Once done, click 'Process'.

<div align="left"><figure><img src="/files/dZ3dvgqdvHGWGC1AU1Bo" alt="" width="563"><figcaption></figcaption></figure></div>

Click 'Close' once the processing is complete.

<div align="left"><figure><img src="/files/NCMNXPMbNF5IcHN0xTmn" alt="" width="563"><figcaption></figcaption></figure></div>

Click 'OK' to proceed.

![](/files/s0m97AacR2sBruLE9oXb)

The files have been converted and saved at the defined location.


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