How to store .txt file data in different columns of a CSV file using BASH?

pr -4T file

Scan Times:   Check Times:      Move Times:       Switch Times:
 33.3 seconds      110.30 seconds    73.66 seconds     92.0 seconds
 77.4 seconds      72.99 seconds     90.77 seconds     78.6 seconds
 33.3 seconds      72.16 seconds     72.87 seconds     77.8 seconds
 77.4 seconds      110.30 seconds    71.75 seconds     84.9 seconds

The empty line in each column will also be displayed.
Previously, you can make the necessary changes in the text, for example, using sed:

sed '/^\s*$/d;s/seconds//' file | pr -4T

Scan Times:   Check Times:  Move Times:   Switch Times:
 33.3          110.30        73.66         92.0
 77.4          72.99         90.77         78.6
 33.3          72.16         72.87         77.8
 77.4          110.30        71.75         84.9

Added:
It should be remembered that the utility was created for printing and has a number of default flags that are not entirely suitable for such cases.
-T eliminate pagination and omit page headers and trailers.
-wN Setting the page width. (default: -w 72).

Added2:
Or an example of how you can write each row to an awk array:

awk '
/^\s*$/ {i=0; next}
        {A[i]= A[++i] sprintf("%*s", 12,$($NF ~ /:$/?0:1))}
END     {for(i in A) print A[i]}
' file

 Scan Times:Check Times: Move Times:Switch Times:
        33.3      110.30       73.66        92.0
        77.4       72.99       90.77        78.6
        33.3       72.16       72.87        77.8
        77.4      110.30       71.75        84.9

Using Raku (formerly known as Perl_6):

raku -e '.join("\t").put for [Z] lines.map(*.trim).batch(6);' 

OUTPUT:

Scan Times: Check Times:    Move Times: Switch Times:
33.3 seconds    110.30 seconds  73.66 seconds   92.0 seconds
77.4 seconds    72.99 seconds   90.77 seconds   78.6 seconds
33.3 seconds    72.16 seconds   72.87 seconds   77.8 seconds
77.4 seconds    110.30 seconds  71.75 seconds   84.9 seconds

Briefly, lines are trim-med (element-wise) and batch-ed (collectively) according to column length (6), producing 4 batches. Then the [Z] operator consecutively "zips" together one element from each batch. In a final formatting step, elements are join()-ed together with tabs to create a TSV file.

[Note: The batch operator will work on incomplete batches; if you only want complete batches, use rotor instead of batch. (However, rotor will fail silently on an incomplete final batch unless you set :partial)].

Remove " seconds" with a second Raku one-liner below, (...or add a subst() call to the first one-liner above):

perl6 -pe 's:g/" seconds"//;' 

https://raku.org/