question

Upvotes
Accepted
11 6 3 7

Tick History Version 2 - Can you verify the uncompressed file size of a file for me?

I've downloaded the file NYQ-2017-12-05-NORMALIZEDMP-Data-1-of-1.csv.gz from the web services... I notice that the compressed file size is listed as 1,315,264 (e.g. 1.3 GB file) ... However, for some reason, when I uncompress this it uncompresses to 240 MB (specifically, 240,322). Can you tell me what the uncompressed file size of this file is supposed to be?

tick-history-rest-api
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
Accepted
11.3k 25 9 14

The uncompressed file size of the file is supposed to be around 24 GB (24,002,128,910 Bytes). I am able to uncompress the file with 7-Zip app. According to gzip manual, the uncompressed size and compression ratio are listed incorrectly for uncompressed files 4 GB and larger. I am not sure if this can be related to the issue.

Which tool/programming did you use to uncompress the file?

Below is the screenshot of the manual.


gzip-manual.png (10.6 KiB)
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
11 6 3 7

Thanks - also what is the compressed file size?

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

The compressed file size is 1,346,830,078 Bytes. It looks different from the file size you provided. Can you re-download the file?

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.