screenshot of the issue

Patch needs to write lists of 15 floats and one text(symbol) to a text file, many times.

As far as I can tell, it seems that the textfile object injects carriage return when the line exceeds some fixed limit. I've tried writing multiple types of messages to the file, and they all demonstrate similar behavior.

It's annoying to have a row of data broken into multiple lines because I need to suck this file into excel to do some processing of the output on the rows of results..

I cannot find anything written about this behavior and I'm not experienced PD-programmer. Can anyone offer any ideas?

You should use add2 instead of add, as in:

[add2 $1 $2 $3 $4 $5 $6 $7 $8 $9 $10 $11 $12 $13 $14 $15 $16 $17(
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[textfile]

add2 adds an unterminated message (so no ; in the end). The same is true when adding strings to regular messages. If you click on the top message in the patch below...:

[add bar 123(
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[foo(

...the bottom message will become [foo bar 123;(. Now if you do the same with this one...:

[add2 bar 123(
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[foo(

...you get [foo bar 123(.

Good luck,
Gilberto