# How export RAW Data in a file

**URL:** <https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541>\
**Category:** Data\
**Created:** [August 5, 2022, 5:58pm UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541 "2022-08-05T17:58:22Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![yVega](https://avatars.discourse-cdn.com/v4/letter/y/ce7236/32.png) [@yVega](https://community.purpleair.com/u/yVega)\
**Post date:** [August 5, 2022, 5:58pm UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541/1 "2022-08-05T17:58:22Z")

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Can I export my data PM RAW in a external file from server?  
I have a PA-II without SD  
I need to have all the raw data of a period  
i had read something about it, but i can’t find the post in the forum

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**Author:** ![dwhitemv](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/dwhitemv/32/1508_2.png) [@dwhitemv](https://community.purpleair.com/u/dwhitemv)\
**Post date:** [August 9, 2022, 4:04am UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541/2 "2022-08-09T04:04:19Z")

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Maybe this one?

> [@Download Sensor Data](https://community.purpleair.com/t/download-sensor-data/100):
>
> This method of downloading data is no longer available. We created a download tool that uses the PurpleAir API. More information is available here: [PurpleAir Data Download Tool](https://community.purpleair.com/t/purpleair-data-download-tool/3787). You can easily download historical data from PurpleAir sensors in CSV format. Access the “Sensor data download tool” page by one of the following methods: After selecting an area of interest within the PurpleAir map, click the Download Data button (downward facing arrow) in the bottom-left corner. This will open the …

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**Author:** ![yVega](https://avatars.discourse-cdn.com/v4/letter/y/ce7236/32.png) [@yVega](https://community.purpleair.com/u/yVega)\
**Post date:** [August 9, 2022, 1:01pm UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541/3 "2022-08-09T13:01:59Z")

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Thanks Doug, i didn’t remember where to access.  
I’m reading data columns now: which column corresponds to the current AQI?

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**Author:** ![carlkidcrypto-paa](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/carlkidcrypto-paa/32/853_2.png) [@carlkidcrypto-paa](https://community.purpleair.com/u/carlkidcrypto-paa)\
**Post date:** [September 25, 2022, 4:14am UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541/4 "2022-09-25T04:14:47Z")

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I don’t think the download tool will have “AQI”. The tool will download the raw data only. You can look at PM2.5 or PM10.0 etc to get an idea at what is in the air at the moment. I’d have to look around, but I think there are formulas to take raw data from the download tool and convert it to more useful stuff like AQI.

Take a look at this post: [How to Calculate the US EPA PM2.5 AQI](https://community.purpleair.com/t/how-to-calculate-the-us-epa-pm2-5-aqi/877)

It may have what you’re looking for.

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**Author:** ![Ethan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/ethan/32/177_2.png) [@Ethan](https://community.purpleair.com/u/Ethan)\
**Post date:** [September 26, 2022, 3:17pm UTC](https://community.purpleair.com/t/how-export-raw-data-in-a-file/1541/5 "2022-09-26T15:17:30Z")

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When calculating the AQI, by default, we use the PM2.5 ATM value for outdoor measurements and PM2.5 CF=1 for indoor measurements. Those will need to be converted to the AQI using the formula in the post @carlkidcrypto-paa mentioned above.