Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

July 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more

Reply
davidibarrag
Helper I
Helper I

Missing values when using a folder as a source

Hello everyone, i got one problem. I realize that when I connect the power query to a folder with csv files and combine them, there are a lot of missing values. But when I connect each file independently, those missing values appear. Do everyone know how to solve this problem, i could use a lot of help here. I can´t connect each file alone because there are like 100 files. 

Thank you a lot.

2 REPLIES 2
v-eachen-msft
Community Support
Community Support

Hi @davidibarrag ,

 

Please make sure that the columns( regardless of name or format ) of these files are same. 

If it is not a problem caused by this reason, you could show more details with files and screenshots.

 

Community Support Team _ Eads
If this post helps, then please consider Accept it as the solution to help the other members find it.
AlB
Community Champion
Community Champion

Hi @davidibarrag 

Can you perhaps share some of the files in the folder and the M code you are using so that we can replicate the issue?

What kind of values are gone missing? Is it a specific data type?

 

Please mark the question solved when done and consider giving kudos if posts are helpful.

Contact me privately for support with any larger-scale BI needs, tutoring, etc.

Cheers 

SU18_powerbi_badge

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

60 days of Data Days Carousel

Data Days 2026

Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.