Note that this is made for IITB timetables, customised to the slots here.

Part I: Getting the LaTeX code generated

If you have Python installed

1. Download this text file.
2. Download this python file in the same folder.
3. Modify the text file as per the instructions below. (Save the modified changes in the same file. The filename should be timetable.txt in the same folder as the python code.)
4. Compile the python code.

If you don’t have python installed

1. Open any online service that lets you compile python online while also accepting input. (For example, this.)
2. Open this text file and copy the content in the input area.
3. Open this text file which contains the Python code customised for online purposes. Copy the content into the code area.
4. Modify the content in the input area as per the instructions below.
5. Compile the python code.

Part II: Generating the table

1. Download this tex file. (If you don’t have a local LaTeX compiler, you can use some online service like Overleaf.)
2. You can can modify the title on line 25. (Alternately, search for the phrase “MODIFY TITLE” in the file.)
3. Copy the output of the python code and replace the comment “% INSERT CODE HERE” (on line 32) with the output.
4. Compile.

Instructions

So, here’s how you should modify the .txt file:

The main lines of the .txt file follow the following format:

slot>>x>>x

(Do not change the >>s!)

Do not modify the slot. You can modify the next two xs. Typically, you’d want to make the first x the course code and the second x the location. (Hopefully, in-campus classes have started.)
This is up to you.
Note that you can put a space in course code and locations. For example, MA 105 and LA 101 are fine.
However, maintain the two > in between.

The thing to keep in mind is that when the code is compiled, each cell will have two lines: the top line will be the first x and the second line will be the second x.

The nice thing is that if you leave an x as it is, then the code will ignore it. That is, you don’t have to modify it. (In particular, if you don’t have anything in slot 6, you don’t have to make any changes.)

Now, you may observe that there’s slot 1 and also 1A, 1B, 1C.
If you have the same course (and location) in all the three sub-slots, you only need to fill information in slot 1 and leave the rest blank.
However, if you do fill 1A, then the information of 1A will be given priority over 1.
If you fill 1 and 1A but not the rest, then 1B and 1C will follow whatever you’ve filled for 1.

As an example, you can see this file.
(Since there’s no point of location this semester, I’ve used the second x for course name. I also haven’t exploited the sub-slots feature.)

Extra hacks

If you do know LaTeX yourself, then you can add some input additional stuff using your knowledge. For example if you want to add three lines to slot 5A, you can do the following:
5A>>CS 101>>LA 101\\(9:30 - 10:55)

Since LaTeX reads \\ as a newline, you’d be done.
You can even get funkier and use math commands (within math mode, of course). Up to you. (Note to modify the file to import the relevant packages.)

Feedback

If there are any errors or if you want to suggest something, you can either mail me or drop a message here.

Bugs

Had to code slot 5 and 7 separately, this might lead to unproportionally long cells. If you have any (simple) fix, let me know.