easiest way for you to find out is to test it yourself on a DEV instance.

you running that on your machine or on the server through cmdshell or sql server agent job? if on the server the files need to be on the server C:...

Free versions already mentioned.
For paid versions
RedGate - SQL Prompt 
DevArt - SQL Complete
Neither completely good, one better on particular things, the other better on other things. DevArt...

can you post the sql you using as your source on the dataflow mentioning which column is giving you the undesired result.

Taking in consideration what the output is I do not believe that you are doing a convert to decimal 38,10 on source, neither is the output defined with the same...

Could you post the C# code here so we can have a look at it and eventually suggest any modification.

And it will always be slow - just not...

Trick is "do not use SSIS".
SSIS is very slow with clobs regardless of the driver used (possible exception of third party ones like CozyRoc and similar as i do...

Luis, I think you failed to understand what others were trying to explain but as I may be wrong can you explain to us how you will determine the content...

perfectly normal - floats do not convert to varchar the way you expect.

DECLARE @myInt float = 5555555;
SELECT CAST(@myInt AS VARCHAR(12)), RIGHT(REPLICATE('0',8) + CAST(cast(@myInt as int) AS VARCHAR(8)),8)

small error on it as first 2 options are the same - did pick up one of the 2 set nulls off and got the wrong one

This really should not be sent to standard output but rather redirected to a database or a file as volumes can be quite high.

Import-Module sqlps -DisableNameChecking

try

Import-Module sqlps -DisableNameChecking
$path='C:\localhost\serveur.txt'
$serveurs=Get-Content -path $path

$query="exec xp_readerrorlog 0,1"

foreach ($server in $serveurs) 
{
invoke-sqlcmd -Query $query -ServerInstance $server
}

you also need to take in consideration licensing - if your dev boxes are using a SQL Server Developer license (being it a MSDN one or not) they can not...