Aligning Pasted-in Data To Match Blank Rows

I have a set of 50 or so large worksheets that need updating each month. My problem is the figures I need to update these sheets with are formatted differently (different alignment of blank rows) to the destination.

I'll try to illustrate, this is the sheet I need to add data to on a monthly basis... (you'll need to imagine the numbers in column form as I'm no HTML expert)

May June July
23 34 45
65 34 45
34 23 23

[Code] .......

The blank rows need to remain uniform. When I need to paste in August's data the blank rows in the raw data extract are aligned differently and it's a laborious job deleting and inserting cells to get them to align (the sheet has hundreds of rows).

I'm capable enough of recording a macro to replicate the delting/inserting of cells BUT of the 50 or so sheets I need to update there's no uniformity of where the blank rows occur. To further exacerbate, there's no uniformity over where the blank rows occur in the data that needs to be pasted in, either. The blank rows already in the worksheets HAVE to remain and can't be deleted or altered.